




































 Agricultural Science; Vol. 2, No. 1; 2020 
ISSN 2690-5396   E-ISSN 2690-4799 

https://doi.org/10.30560/as.v2n1p56 

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Investigation on the Natural Enemies of Jute Yellow Mite and Their 
Performances and Seasonal Incidence 

Md. Nazrul Islam1, Khandakar Shariful Islam2, Mahbuba Jahan2 & Md. Sohanur Rahman3 

1 Principal scientific officer, Pest management Division, Bangladesh Jute Research Institute, Manik Mia Avenue, 
Dhakia-1207, Bangladesh 
2 Professor, Department of Entomology, Bangladesh Agricultural University, Mymensingh. 
3 Scientific Officer, Pest management Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhakia-
1207, Bangladesh 
Correspondence: Md. Sohanur Rahman, Scientific Officer, Pest management Division, Bangladesh Jute Research 
Institute, Manik Mia Avenue, Dhakia-1207, Bangladesh. E-mail: sohanbau2010@gmail.com 
 
Received: March 5, 2020   Accepted: March 22, 2020   Online Published: March 29, 2020 
 
Abstract 
The jute yellow mite Polyphagotarsonemus latus constitutes one of the major pests of jute crop in Bangladesh. 
The objective of this work was to investigation on the natural enemies of jute yellow mite. The investigation on 
the natural enemies of jute yellow mite were studied in the laboratory of Bangladesh Jute Research Institute during 
March 2011 to September 2013. As many as six predators of jute yellow mite viz, Predatory mite, Thrips, Minute 
pirate bug, Lady bird beetle, Mirid bug and Spider were collected and identified. The predation rate of the predatory 
mite Amblyseius sp. showed an average of 8.8 jute yellow mite per hour in laboratory condition. Predatory mite 
reached the peak on the 20th June. The highest population was 25 predatory mite/25 leaves. The population of 
predatory mite declined sharply in the 1st week of July. The nymph and adult of Scolothrips consumed an average 
of 15.4 and 20.10 yellow mite per hour. Scolothrips sp reached its peak population on 30th June and declined 
occurred in the 1st week of July. Both nymph and adult stage of Orius sp. predate 24.5 and 21 jute yellow mite 
respectively. The highest number of Minute pirate bug 20 was recorded at 30th June. Both the grubs and adults of 
lady bird beetle predate on all the stage of yellow mite. Grub was found as voracious feeder showing a predation 
efficiency of 35 per hour. The highest and lowest number of Ladybird beetle was recorded on 25th June and 5th 
May respectively. The highest 15 Mirid bug was recorded at 30th June. An unidentified species of spider was found 
to consume yellow mite.  
Keywords: natural enemies, investigation, performance, jute yellow mite  
1. Introduction 
The genus Corchorus belonging to the family Tiliaceae, is commonly known as jute. There are 2 species of jute 
namely, Corchorus capsularis L. and C. olitorius L. Jute is most important cash crop and one of the foreign 
currency earning sources of Bangladesh as the culture of higher expression of economy. Jute is attacked by various 
insect and mite pests. More than 40 species of insects and mites are considered to be the pests of jute in Bangladesh 
(Kabir, 1975). Among the non-insect pests yellow mite, Polyphagotarsonemus latus (Banks) (Acari: 
Tarsonemidae) is one of the most common and destructive pests of both the cultivated species of jute (C.capsularis 
L. and C. olitorius L.). It was first described by Banks in 1904 as Tarsonemus latus from the terminal buds of 
mango in a greenhouse in Washington, D.C., USA (Denmark, 1980). 
The yellow mite is commonly known as yellow tea mite which is also called as the broad mite. In India and Sri 
Lanka, it is called yellow tea mite. However, some parts of the South America, it is called tropical mite or the 
broad rust mite (Anonymous, 2005a). Yellow mite is extremely polyphagous and attack more than 60 plant 
families worldwide (Karuppuchamy and Mohanasundaram, 1987; Moutia, 1958; Nemesthoty et al., 1982; Iacob, 
1978).  
Yellow mite infestation in jute normally begins on the young apical leaves and causes damage by sucking of the 
plant sap resulting in wrinkle and curly appearance of tender leaves. Gradually, the colour of the leaves change to 
coppery or purplish, finally dry up and fall down (Siddique and Kabir, 1978). The vertical growth of the internodes 
is suppressed thereby side branches are enhanced (Kabir, 1975). The infested plant remains stunted and fibre yield 



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is reduced. It has been reported that about 38% of fibre yield is reduced due to attack of yellow mite under field 
condition (Anonymous, 1990). Yellow mite also attacks flower buds and young seed pods. The infested flower 
buds cannot bloom properly. The floral parts become crinkled and the colour changes yellow to a blackish. The 
seed pod fails to develop which results in reduced seed production (Siddique and Kabir, 1978). The damage caused 
by the yellow mite is often termed as “Telenga” or “Telchita” disease in Bangladesh (Kabir,1975). Different 
control measures e.g. physical, mechanical, cultural and chemical control are practiced against yellow mite, but 
none of them provides effective control. So far, a good number of acaricides have been evaluated by BJRI and 
considered as the most effective methods for the control of yellow mite. However, chemical acaricides have some 
limitations. The non-judicious use of synthetic chemicals for the control of mite pests creates several problems in 
agro-ecosystem, such as direct toxicity to beneficial insects, fishes and human (Goodland et al., 1985, Pimentel 
1981, Munakata 1977) gain resistance to chemicals (Schmutterer et al., 1983, Waiss and Chen 1981, Georghiou 
and Taylor 1977, Fukuda 1966) out breaks of secondary pests (Hagen and Franz 1973), health hazarads (Bhaduri 
et al. 1989), environmental pollution (Fishwick 1988, Kavadia et al.1986), susceptibility of crop plants to insect 
pests (Pimentel ,1977) and increases environmental and social cost (Pimentel ,1981). In general, chemical control 
of pests by different pesticides is a very health hazardous, costly and they kill not only the pests but also their 
parasite, predators and create imbalance in environment. The indiscriminate and excessive use of pesticides, on 
the other hand have created new problems like resurgence of minor pests and insects developing resistance to 
insecticides. Therefore, research is being done to find out suitable eco-friendly pest control measures against the 
mite pest. 
Therefore, to minimize the use of synthetic chemicals in mite control programmes, alternative or biodegradable 
substitutes are now strongly needed in many developed countries. Biological control of pests is one of the most 
important components of integrated pests management. Biological control with use of predators, parasites or 
pathogens is a viable alternative to chemical control measures. Natural enemies can either be native or introduced. 
The use of natural enemies prevents environmental risks associated with chemical pesticides, while sustainably 
protecting the crop given that the biological control agent does not cause any harmful non-target effects. Biological 
control is considered as a natural phenomenon of regulation of insect pests numbers by biotic mortality factors 
such as parasites, predators, disease and extremes of weather that keeps pests in a state of balance. 
It is quite apparent that naturally occurred biotic agents especially the parasitoid, predators, pathogens and their 
utilization has utmost effect in pests control and this technique has received more attention as it is relatively safe, 
permanent, self–renewing and less expensive. Entomologists have given attention to identify and use of bio-control 
agent. Till now some predators, parasites have been detected as natural enemies of jute mite. 
The present investigations were undertaken with the objective to identify the natural enemies of jute yellow mite 
with their potentiality as bio-control agent. 
2. Materials and Methods 
2.1 Survey for Existing Natural Enemies of Yellow Mite  
Data were collected through random sampling from ten selected plots where no chemicals were applied. Natural 
enemies were observed though observation of leaves only and whole plant searching 
2.2 Leaf Searching  
Infested plants were selected randomly from which mite infested leaves were collected and observed under stereo 
microscope for the presence of any predator(s). 
2.3 Whole Plant Observation  
From each plot 25 yellow mite infested plants were selected randomly and observed with care separately through 
naked eye to record the presence of larger sized predators.  
2.4 Preservation of the Predators  
The collected predators were preserved for identification. The natural enemy specimens were preserved using the 
following preservation methods:  
i) Dry method: Paper tips mounting 
ii) Semi- permanent method- By using Canada balsam whole mount slide 
iii) In liquid- At immature stage in alcoholic solution 

 
 



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2.5 Identification of the Predators  
The predators were identified with the taxonomic literature, expert scientists and university teachers. Some of the 
predators are the new record of jute field in Bangladesh. Some predators could not be identified due to the lack of 
specific key (literature). 
2.6 Seasonal Incidence  
Infested leaves and twigs were collected from the field and observed under the stereo-microscope at 5 days 
intervals during the infestation period from April to September. Field temperature and relative humidity was also 
recorded during the study period. Population level of specific predator in different months was documented. 
2.7 Predation Rate 
Predation performance of different predators of yellow mite was observed through monitoring hourly consumption 
of the mite prey by specific predator. The prey consumption was studied using stereo- microscope. 
3. Results 
3.1 Predatory mite- (Amblyseius sp.), Family: Phytoseiidae 
The predatory mite, Amblyseius sp. is an important predator as it was found throughout the jute growing season. 
A good number of predatory mite species of the family Phytoseiidae attack yellow mite.  
3.1.1 Systematic Position of the Predatory Mite 
Phylum: Arthropoda 

Class: Arachnida 
           Order: Acarina 
              Family: Phytoseiidae                                        
                          Genus: Amblysieus                                   
3.1.2 Description 
The predatory mite, Amblysieus sp. is straw-coloured to almost white, depending on age and recent food sources. 
It is more flattened in shape than the relatively dome-shaped spider mites. When viewed from above, Amblyseius 
is oval to somewhat pear-shaped. Usually teardrop-shaped, long legged.  
3.1.3 Searching Behaviour  
The predatory mite, Amblysieus sp. was found to move quickly through and around in search of prey. Unlike spider 
mites, it moved backwards as well as forwards. At the noon the activity of adult predatory mite was found mainly 
restricted to shady area but they were highly active in all the areas of leaf and shoot during the morning and evening 
time of the day.  
3.1.4 Prey Consumption  
Amblyseius feeds on a variety of mite species, but exhibits a little cannibalistic behaviour. It is capable of 
consuming all the life stages of the prey. Both the immature and mature stages can attack the yellow mite of jute. 
In the present study the predation performance of only adult stage of the Amblyseius sp. was investigated. The 
predation performance of the mite was studied in the average room temperature of 26.75±0.09 and relative 
humidity of 72.08±0.33. The predation rate of Amblyseius sp. was recorded on an average 8.8±0.84 jute yellow 
mite (egg, nymph and adult) per hour in laboratory condition. 
 
 
 
 
 
 
 
 
 



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3.1.5 Seasonal Incidence of the Predatory Mite Amblyseius sp. 

 
Figure 1. Seasonal incidence of Amblyseius sp. in experimental field in Central station, BJRI during 2012 

 
The results of incidence of the predatory mite, Amblyseius sp. are presented in the Figure 1. This particular 
predatory mite was present in the jute field during the period from May to July. It was first noticed on the 5th of 
May when only 3 predatory mite were found/25 leaves of jute plant. Then the population of predatory mite 
increased steadily with the progration of the month. It reached the peak on the 20th June and maintained similar 
level up to the end of the June. The highest population was 25 predatory mite/25 leaves. The population of the 
predatory mite then declined sharply in the 1st week of July. There after it was found to reduced population level 
slowly until the end of July. 
3.2 Thrips, Scolothrips sp. 
Thrips, Scolothrips sp. is considered as a good predator of jute yellow mite. It has not been reported earlier as a 
predator of jute yellow mite in Bangladesh. It was found only in the areas of high yellow mite infestation. It 
disappeared as soon as the population of the yellow mite decreased.  
3.2.1 Systematic Position 
Phylum: Arthropoda 

Class: Insecta 
 Order: Thysanoptera 

 Family: Thripidae 
 Genus: Scolothrips 

3.2.2 Description 
The thrips are yellow and red in colour but at the nymphal stage they are transparent or whitish in colour. They 
are very small in size and the length is about only ½ mm. They have short live span and complete their whole life 
within a week. 
3.2.3 Searching Behavior  
Both the nymph and adult are very active but adult were more active. When the leaf was touched then the adults 
were found to move by inverse jumping. At the period of high sun the thrips were found to be restricted to shady 
area. They were highly active in all the areas in search of the prey during the morning and evening time of the day.   

Date of observation



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3.2.4 Prey Consumption of Thrips  
 
Table 1. Predation rate of the predator, Scolothrips sp. per hour under laboratory condition of BJRI, Dhaka 

Stages of predator, Scolothrips sp. Predation rate/hr (Mean±SE) 
Nymph 15.4±0.33 
Adult 20.10±0.38 
Room temperature (oC) 26.46±0.10 
Relative Humidity(%) 72.43±0.41 

 
Both nymph and adult predate on yellow mite irrespective of egg, nymph or adult preferably egg. The predation 
performance of the adult was higher than that of the nymph of the thrips (Table1). The nymph and adult of 
Scolothrips consumed an average of 15.4 and 20.10 yellow mite per hour at the temperature of 26.46±0.10 oC and 
relative humidity 72.43±0.41%.   
3.2.5 Seasonal Incidence of Predatory Thrips  

 
Figure 2. Seasonal incidence of Scolothrips sp. in experimental field, Central station, BJRI, Dhaka during 2012 

 
The predatory thrips Scolothrips sp. was found in the jute field during the period from May to July (Figure2). It 
was first evident after mid May then it started to increase its number steadily up to the end of June. It reached its 
peak population of 25 on 30th June. There after a sharp decline occurred in the 1st week of July. which then decline 
further up to the middle of July. No thrips was found available in the later part of July and onward. 
3.3 Minute Pirate Bug (Orius Insidiosus) 
3.3.1 Systematic Position 
Phylum: Arthropoda 

Class: Insecta 
Order: Hemiptera 

Family: Anthocoridae 
Genus: Orius  

Species: Orius insidiosus 

Date of Observation



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3.3.2 Description  
Among the identified predators Orius insidiosus was found the most numerous in the studied area. It was observed 
that adult and nymphs of Orius insidiosus stay at the lower surface of the tender leaf of the topmost portion of the 
jute plants. It was also found at tender stipule. It could be considered as a good predator of yellow mite of jute.   
3.3.3 Searching Behaviour 
In pursuit of the prey Orius move from to and fro and when it get any prey it pierce the body at the dorsal side of 
the prey jute yellow mite or dorso- ventral side of it and suck the body sap except the exuviae. A predator individual 
was found to predate 8-10 yellow mites one after another at a time and then take rest for several times. It was also 
observed that their feeding tendency varied with the period of the day. It the morning time their feeding tendency 
is low and with day passing of time it increases to very high at the noon which decreases again as the progresses 
towards evening.  
3.3.4 Predation rate of minute pirate bug 
 
Table2. Predation rate of the predator, O. insidiosus in laboratory condition of BJRI, Dhaka, during 2012 

 Stage of predator Predation rate/hr (Mean±SE) 
Nymph 24.5±1.47 
Adult 21±1.45 
Room tempetrature(oC) 26.65±0.12 
Relative Humidity(%) 73.3±0.72 

  
The predation rate of Minute pirate bug at noon is shown in the Table2. Both nymph and adult stage of Orius sp. 
predate yellow mite. This predator predate on all the stages (egg nymph and adult) of the jute yellow mite. A 
nymph of Orius sp. predates 24.5±1.47 egg, nymph and adult of yellow mite per hour. Whereas an adult minute 
pirate bug predates including all stage of yellow mite 21 ± 1.45 per hour.  
3.3.5 Seasonal Incidence of Minute Pirate Bug 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Figure 3. Seasonal incidence of Orius insidiosus in experimental field in central station, BJRI during 2012 
 
 



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The incidence of Miute pirate bug was observed at the 25th May to 5th August (Figure3).  Minute Pirate bug 
showed and increasing trend of its population on the last week of May to the end of June. After reaching to the 
peak the population of the Minute pirate bug decreased continously and reached to zero on the 2nd week of August. 
The highest number of Minute pirate bug 20 was recorded at 30th June. On the other hand, the lowest number of 
Minute pirate bug 2 was recorded at 5th August.  
3.4 Lady Bird Beetle 
Lady bird is usually the most important and frequent predator of red mites. But it is also found to predate on yellow 
mite to a considerable extent. 
3.4.1 Systematic Position 
Phylum: Arthropoda 
 Class: Insecta 
  Order: Coleoptera 
  Family: Coccinellidae      
   Genus: Coccinella 
  Species: Coccinella transversalis                 
3.4.2 Description of the Lady Bird Beetle 
Adults are oval, convex, black and orange in colour. Eggs are very small in size, pale white and oval. Larva is gray 
to blackish and yellow patches. 
3.4.3 Searching behaviour 
They are mainly located under surface of leaves where there are mites of different stages in abundant quantity. 
They move all around from tender leaves to older leaves of the jute plants. Activity was high at the morning and 
evening time. 
3.4.4 Predation Rate of Lady Bird Beetle 
 
Table 3. Predation rate of the predator, Ladybird beetle per hour in the laboratory condition, BJRI during 2012 

Stage of predator Predation rate/hr (Mean±SE) 
Grub 35.70±1.80 
Adult 3.8±0.73 
Room temperature 26.98±0.23 
% Relative Humidity 71.23±0.31 

 
Both the grubs and adults predate on all the stage of yellow mite. Grub was found as voracious feeder. Predation 
efficiency was higher in the grub stage than the adult Table 3. Grub predates on an average of 35±1.80 individuals 
per hours where as adult predate only 3.8±0.73 in number per hour. Feeding tendency of adult on the yellow mite 
reduced markedly to a minimum level. 
 
 
 
 
 
 
 
 
 
 
 



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3.4.5 Seasonal Incidence of Ladybird Beetle 

 
Figure 4. Incidence of Lady bird beetle in experimental field in Central station, BJRI during 2012 

 
The incidence of Ladybird beetle is presented in the Figure 3. The lady bird beetle was found to occur in the jute 
field from 5th May to 30th July. The highest number of Ladybird beetle was recorded on 25th June. On the other 
hand, the lowest number of Ladybird beetle was recorded on 5th May. After reaching to a peak in the last week of 
June a sharp and then steady decline in the population of the predator was observed. 
3.5 Miridbug, Nesidiocoris Tenuis  
Mirid bug is a widely distributed very important predator of a number of pests.  It is a generalist predator that is 
commonly found on solanaceous plants including tomato. It preys on many small invertebrates, such as whitefly 
and mites. It also thrives on eggs of lepidoptera.  The mirid bug, N. tenuis has not been reported as a predator of 
jute yellow mite earlier in Bangladesh.  It was noted that all the stages of N. tenuis are good predators.  
3.5.1 Systematic Position 
Phylum:  Arthropoda 
 Class: Insecta 
  Order: Hemiptera 
  Family: Miridae      
   Genus: Nesidiocoris 
              Species: Nesidiocoris tenuis                 
3.5.2 Predation Rate of Mirid Bug 
The predation rate of the nymphs of the mirid bug was studied in the laboratory. The nymph of the bug was found 
as voracious predator and consumed as many as 37±1.17 yellow mite per hour at the room temperature condition 
of 26.3oC and relative humidity of 75.3%. 
 
 
 
 

Date of Observation



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3.5.3 Seasonal Incidence of Mirid Bug 

 
Figure 5. Seasonal incidence of Mirid bug in experimental field in Central station, BJRI during 2012 

 
The seasonal incidence of Mirid bug is shown in Figure4. The incidence of Mirid bug was observed from mid May 
to mid July, 2010. The highest of 15 Mirid bugs was recorded at 30th June, 2010. Activity of the mirid bug started 
in the middle of May aontinued to increase its population to the end of June which then showed a sharp fall during 
the first half of July. 
3.6 Spider   
3.6.1 Systematic Position 
Phylum:  Arthropoda 
 Class: Arachnida 
  Order: Araneae 
  Family: Thomisidae      
Spider is a good predator of mites. A species of spider was found to consume yellow mite. This particular species 
of spider could not be identified up to the species level. It was not also reported previously in Bangladesh as a 
predator of mite. Preliminary predation performance of the spider on yellow mite of jute has been investigated. It 
consumed on an average of 18 yellow mites per hour.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Date of Observation 



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3.6.2 Seasonal Incidence of the Spider 

 
Figure 6. Seasonal incidence of spider in experimental field in Central station, BJRI during 2012 

 
Incidence of the spider recorded in the central station of BJRI in the year 2010 is presented in the figure 5. The 
presence of the spider was first evident by the end of May. Then it increased its number and reached the peak on 
30th June. A maximum of 11 spiders were found to occur per 25 leaves of jute plant.   
3.7 Red Bug 
Red bug, a good predator of both the jute yellow mite and red mites is commonly found to predate in its nymphal 
stage and the predation performance of it indicates that a considerably higher number of yellow mites (22) could 
be consumed per hour in laboratory condition. Rashed (2006) reported a much higher predation rate of 59 red mite 
per hour. This might be for the preference of the predator for red mite as prey. Seasonal synchrony between the 
predator and prey was evident as it occurred during May to August.  
 
 
 
 
 
 
 
 
 
 
 
 
 

Date of Observation 



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3.7.1 Seasonal Incidence of Red Bug 

 

 
Figure 7. Seasonal incidence of Red bug in experimental field in Central station, BJRI during 2012 

 
3.8 Slender Spring Tails 
Insect of the order Collembola is rarely found. In the jute field of central station of BJRI the slender spring tail , a 
member of Collembola was found. This particular Collembola could not be identified but found to predate on jute 
yellow mite. It was not reported in Bangladesh as a predator of mites. This spring tail is also called slender spring 
bug. 
4. Discussions 
As many as nine predators of jute yellow mite were recorded from CRS, Dhaka during 2011 to 2013. The 
investigation on the potentiality of the predators against the pest yellow mite indicates their importance to be used 
in bio-control program.  
4.1 The Predatory Mite  
The predatory mite Amblyseius sp. could be considered very important predator for its presence in the whole jute 
growing season and predating all the stages of yellow mite. Importance of Amblyseius sp. as predatory mite of jute 
mites was reported by many other authors (Bonde, 1989; Hunter, 1997;Rashed, 2006). Rashed (2006) observed 
that the similar consumption rate of predatory mite as has been recorded in the present study. Cross (1984) showed 
that introductions of predatory mites in March or early April at a rate of one mite per plant were consistently 
successful. 
4.2 The Thrips  
The thrips (Scolothrips) are are very small, yellow and red in colour but transparent or whitish in colour in 
immature stage. They have short developmental period and shorter live span. Both the nymph and adult are very 
active predators showing predation on yellow mite irrespective of egg, nymph or adult. The predation performance 
of the adult was higher than that of the nymph of the thrips. The nymph and adult of Scolothrips were found to 

Date of Observation 



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consume an average of 15.4 to 20.10 yellow mites per hour. A good synchrony between the yellow mite and the 
predatory thrips also exist in the field.  
4.3 Minute Pirate Bug  
Minute pirate bug (Orious insidiosus) nymph and adult were observed to predate an average of 24.5 and 21±1.45 
yellow mites of all stages per hour indicating an efficient predator of the pest although the rate of predation might 
differ from time to time depending upon the environmental temperature. Both the nymph and adult of Orius sp. 
predate yellow and red mite of jute but prefer jute yellow mite. Rashed (2006) reported that the predation rate 
nymph and adult of minute pirate bug ranged from 30 to 32 egg, nymph and adult of yellow mite per hour which 
is higher than the result of the present study. However, the predation performance of both the stages of the minute 
pirate bug indicates its high potentiality to reduce the population of the yellow mite in jute field. Seasonal 
abundance of the bug also indicates a good synchrony with its prey. 
4.4 Lady Bird Beetle  
Lady bird beetle was found as most frequent predator of red mites but could predate on yellow mite to a 
considerable extent. They remain mainly located under surface of leaves where there are mites of different stages. 
Frequent movement all around from tender leaves to older leaves of the jute plants in search of prey mainly during 
the morning and evening was noticed. Although both the grubs and adults predate on all the stage of yellow mite 
but the later was found as voracious feeder showing the predation efficiency of 35 individuals per hours. The lady 
bird beetle was found to occur in the jute field from 5th May to 30th July showing a good coexistence in the field. 
4.5 Mirid Bug, Nesidiocoris Tenuis  
Mirid bug, a widely distributed generalist predator commonly found on solanaceous plants including tomato was 
found preying on many small invertebrates, such as whitefly, mites and others. It should be noted here that this 
particular bug has been documented for the first time in Bangladesh. All the stages of N. tenuis are good predators. 
The nymph of the bug could be considered as voracious predator as it showed a consumption performance of 37 
yellow mite individuals in an hour. The seasonal incidence of Mirid bug is showed that it occurs in between May 
and July.  
4.6 Spider 
A spider species which could not be identified was found to consume yellow mite. This is also a first record as a 
predator of mite in Bangladesh. Preliminary predation performance of this spider showed that it could consume 
on an average of 10.56 yellow mites per hour. The presence of the spider was first evident by the end of May and 
reached its peak on 30th June.  
5. Conclusion 
As many as six predators of jute yellow mite viz, Predatory mite, Thrips, Minute pirate bug, Lady bird beetle, 
Mirid bug and Spider were identified which will be used as bio-control agent to control jute yellow mite. Chemical 
pesticide is the main tools for pest management. Every chemical has hazardous effect to environment. Considering 
green world, this study will help to keep environment free from chemical pollution. 
6. Conflict of Interest 
The authors have no conflict of interest to disclose. 
7. Authors' Contributions 
Md. Nazrul Islam conducted the experiment and analyzed the data. Khandakar Shariful Islam and Mahbuba Jahan 
provided help for the experimental design and supervised in the whole experiment. Md. Sohanur Rahman 
contributed in data presentation, analysing data, searching journal for publication and finally manuscript 
processing & writing of this article. This article was read and approved by all authors for final Publication. 
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    /NLD (Gebruik deze instellingen om Adobe PDF-documenten te maken die zijn geoptimaliseerd voor prepress-afdrukken van hoge kwaliteit. De gemaakte PDF-documenten kunnen worden geopend met Acrobat en Adobe Reader 5.0 en hoger.)
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    /ENU (Use these settings to create Adobe PDF documents best suited for high-quality prepress printing.  Created PDF documents can be opened with Acrobat and Adobe Reader 5.0 and later.)
  >>
  /Namespace [
    (Adobe)
    (Common)
    (1.0)
  ]
  /OtherNamespaces [
    <<
      /AsReaderSpreads false
      /CropImagesToFrames true
      /ErrorControl /WarnAndContinue
      /FlattenerIgnoreSpreadOverrides false
      /IncludeGuidesGrids false
      /IncludeNonPrinting false
      /IncludeSlug false
      /Namespace [
        (Adobe)
        (InDesign)
        (4.0)
      ]
      /OmitPlacedBitmaps false
      /OmitPlacedEPS false
      /OmitPlacedPDF false
      /SimulateOverprint /Legacy
    >>
    <<
      /AddBleedMarks false
      /AddColorBars false
      /AddCropMarks false
      /AddPageInfo false
      /AddRegMarks false
      /ConvertColors /ConvertToCMYK
      /DestinationProfileName ()
      /DestinationProfileSelector /DocumentCMYK
      /Downsample16BitImages true
      /FlattenerPreset <<
        /PresetSelector /MediumResolution
      >>
      /FormElements false
      /GenerateStructure false
      /IncludeBookmarks false
      /IncludeHyperlinks false
      /IncludeInteractive false
      /IncludeLayers false
      /IncludeProfiles false
      /MultimediaHandling /UseObjectSettings
      /Namespace [
        (Adobe)
        (CreativeSuite)
        (2.0)
      ]
      /PDFXOutputIntentProfileSelector /DocumentCMYK
      /PreserveEditing true
      /UntaggedCMYKHandling /LeaveUntagged
      /UntaggedRGBHandling /UseDocumentProfile
      /UseDocumentBleed false
    >>
  ]
>> setdistillerparams
<<
  /HWResolution [2400 2400]
  /PageSize [612.000 792.000]
>> setpagedevice

