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American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 02 ISSUE 12     Pages: 31-35 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705)  
OCLC – 1290679216  METADATA IF – 5.625 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

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ABSTRACT 

The article discusses the dynamics of infestation by helminth larvae of Candaharia levanderi Simroth, 1901 is based on 

the dependence of population density of this species 

 

KEYWORDS 

Candaharia lavender, helminth larvae, invasion dynamics, population density. 

 

INTRODUCTION 

In recent years, the sharp expansion of the agricultural 

production of our country has various effects on the 

modern state of land molluscs in the developed areas. 

The development of protected lands and the 

development of animal husbandry, on the one hand, 

caused the reduction of the areas where rare and 

endemic species of land molluscs are distributed and 

the crisis of their populations, on the other hand, the 

increase in the number of some harmful species of land 

molluscs, the increase in the rate of damage to 

nutritious plants of livestock importance, and the 

parasitic larvae of livestock leads to the expansion of 

the scope of the disease. From this point of view, in 

addition to determining the species composition of 

land molluscs in changing local areas, assessing the 

status of populations of rare species, studying their 

economic importance, and developing effective 

  Research Article 

 

DYNAMICS OF INFESTATION WITH HELMINT LARVAE OF CANDAHARIA 

LAVENDERI SIMROTH, 1901 
 

Submission Date: December 13, 2022, Accepted Date:  December 18, 2022,  

Published Date: December 23, 2022  

Crossref doi: https://doi.org/10.37547/ajahi/Volume02Issue12-06 

 

 

Abdulazizova Shoira Karimovna 
Termez State University, Docent, Termez, Uzbekistan 

 

Abdulloyeva Dilnoza Boboismoilovna 
Termez State University, Docent, Termez, Uzbekistan 

Journal Website: 

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com/index.php/ajahi 

Copyright: Original 

content from this work 

may be used under the 

terms of the creative 

commons attributes 

4.0 licence. 

 

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Volume 02 Issue 12-2022 32 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 02 ISSUE 12     Pages: 31-35 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705)  
OCLC – 1290679216  METADATA IF – 5.625 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

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methods of combating harmful species are of great 

scientific and practical importance. 

Studying the taxonomic composition and distribution 

of land molluscs, which are the main causes of certain 

types of parasitic diseases spread in Central Asia, and 

the molluscs involved as intermediate hosts is one of 

the main problems for today.  

The degree of contamination of land mollusks with 

protostrongylid larvae distributed in different 

landscapes of the south of Uzbekistan was studied by 

E.N. Kulmamatov and others, in the life cycle and 

circulation of protostrongylids Xeropicta. 

candacharica, Subzebrinus (Pseudonapaeus) 

albiplicatus, Subz (Ps.) sogdianus species have been 

found to play an important role [1]. 

Currently, the taxonomic composition of land molluscs 

that participate as intermediate hosts of helminths in 

Uzbekistan A. Pazilov, A. Kuchbaev [4], the taxonomic 

composition of helminth larvae found in land molluscs 

A. It is studied by Kuchbaev [2.], A.E. Kuchbaev, M. 

Egamberdiev and others [3]. 

However, the study of the degree of helminth larvae 

infestation of terrestrial molluscs common in the 

Surkhan-Sherabad valley and its surrounding 

mountains is currently fragmentary, and some species 

distributed around the village of Khatak of the 

Kohitang mountain range were partially studied by 

Kuchbaev, Egamberdiev and others. In the rest of the 

regions, this problem remains unsolved [3] . 

Therefore, the purpose of our research work was to 

study the degree of infection of C. lavenderi species 

with helminth larvae and its dependence on population 

density. 

The degree of infection of C. lavenderi species with 

helminth larvae was studied in the southeastern part of 

the Kohitang mountain range from the village of 

Aktash to the village of Vandob and from there in the 

north-west direction, in the areas of the Vandob 

section of the Surkhan state reserve. 

 According to the results of the conducted research, 

the species C. lavenderi is unevenly distributed by 

altitude regions and biotopes. For example, in the 

desert region: among the grass on the banks of 

streams, under the trees in gardens, among the plant 

cover in the undeveloped areas of the land near water 

bodies, in the hill region: on the slopes where semi-

shrub plants grow and among the stone piles, in the 

stone piles between the grass in the land near the 

water bodies, in the mountain in the region, among 

shrubs and trees, living under stones between grass 

plants, the population density and level of helminth 

infection are as follows (table). 

According to the data in the table, the dynamics of 

infestation of C. lavenderi species with helminth larvae 

differ by biotopes and altitude regions. For example, in 

the desert region, 1 out of 60 molluscs distributed 

among plants under trees in gardens is infected with 

larvae, and the infestation is equal to 1.66%, while in 

those living among vegetation in undeveloped areas 

near water bodies, the infestation is equal to 12.30%, in 

the hilly region, the same and in such a biotope, this 

indicator is 13.33%. In the mountain region, 1 out of 60-

65 molluscs is affected, equal to 1.53%, 1.66%. 

Table 

Distribution of the species C. lavenderi by altitude regions and biotopes and infestation level by helminth larvae 

 

https://doi.org/10.37547/ajahi/Volume02Issue12-06
https://scholar.google.co.in/scholar?q=DYNAMICS%20OF%20INFESTATION%20WITH%20HELMINT%20LARVAE%20OF%20CANDAHARIA%20LAVENDERI%20SIMROTH,%201901
https://www.mendeley.com/search/?page=1&query=INHERITANCE%20OF%20GROWTH%20DURATION%20IN%20DOMESTIC%20AND%20INTERSPECIFIC%20F1%20PLANTS
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Volume 02 Issue 12-2022 33 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 02 ISSUE 12     Pages: 31-35 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705)  
OCLC – 1290679216  METADATA IF – 5.625 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

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Researched biotopes 

and the population 

density of molluscs in 

them 

Altitude regions 

Desert Hill Mountain 

To
ta

l s
tu

d
ie

d
 

D
am

ag
ed

 

IE
 %

 

To
ta

l s
tu

d
ie

d
 

D
am

ag
ed

 

IE
 %

 

To
ta

l s
tu

d
ie

d
 

D
am

ag
ed

 

IE
 %

 

Among the grass on 

the banks of the 

stream (7-8 per 1m2) 

 

 

55 

 

 

3 

 

 

5,45 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

Between plants under 

trees in gardens (5-6 

per 1m2) 

 

 

 

  60 

 

 

 

   1 

 

 

 

 1,66 

 

 

 

- 

 

 

 

- 

 

 

 

- 

 

 

 

- 

 

 

 

- 

 

 

 

- 

Plant cover in 

undeveloped areas 

near water bodies 

(10-12 per 1m2) 

 

 

 

 

 

  65 

 

 

 

 

 

  8 

 

 

 

 

 

 12,3 

 

 

 

 

 

- 

 

 

 

 

 

- 

 

 

 

 

 

- 

 

 

 

 

 

- 

 

 

 

 

 

- 

 

 

 

 

 

- 

Slopes with semi-

shrub plants (8-9 per 

1m2) 

 

 

 

- 

 

 

 

- 

 

 

 

- 

 

 

 

  60 

 

 

 

 4 

 

 

 

 6,66 

 

 

 

- 

 

 

 

- 

 

 

 

- 

https://doi.org/10.37547/ajahi/Volume02Issue12-06
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Volume 02 Issue 12-2022 34 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 02 ISSUE 12     Pages: 31-35 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705)  
OCLC – 1290679216  METADATA IF – 5.625 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

Between grasses and 

under piles of stones 

in lands near water 

bodies (13-15 per 

1m2) 

 

 

 

 

 

- 

 

 

 

 

 

- 

 

 

 

 

 

- 

 

 

 

 

 

  60 

 

 

 

 

 

8 

 

 

 

 

 

 

13,33 

 

 

 

 

 

- 

 

 

 

 

 

- 

 

 

 

 

 

- 

Between shrubs and 

trees (12-14 per 1m2) 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

 

 

 65 

 

 

 1 

 

 

 1,53 

Under stones 

between grasses (10-

12 per 1m2) 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

 

 

- 

 

 

 60 

 

 

 1 

 

 

 1,66 

 

According to the results of the research, the high level 

of invasion of land molluscs distributed in biotopes 

with helminth larvae depends on the density of the 

mollusc population based on the characteristics of the 

biotope and its microclimate. For example, in the 

desert region under the vegetation cover of 

undeveloped areas near water bodies or in such a 

biotope in the hilly region, the population density of 

molluscs is high (12-15 molluscs per 1 m2), and the level 

of infestation with helminth larvae is 12.30% to 13.33%. 

constitutes 

Therefore, the higher the density of molluscs in the 

population, the higher the level of infestation with 

helminth larvae. 

However, in the mountain region of the Kohitang 

mountain range, the population density of molluscs is 

high, but the invasion rate is low (table). This is due to 

the fact that the research area in the mountain region 

is in the Vandob section of the Surkhan State Reserve, 

and the use of these lands as pasture is prohibited. This 

situation results in less contact between the mollusc 

and the larva, and accordingly infestation may be 

lower.  

REFERENCES 

1. Кулмаматов Э.Н., Исакова Д.Т., Азимов Д.А. 

Гельминты позвоночных горных экосистем 

Узбекиста. – Ташкент: Фан, 1994. – С. 71-72.  

https://doi.org/10.37547/ajahi/Volume02Issue12-06
https://scholar.google.co.in/scholar?q=DYNAMICS%20OF%20INFESTATION%20WITH%20HELMINT%20LARVAE%20OF%20CANDAHARIA%20LAVENDERI%20SIMROTH,%201901
https://www.mendeley.com/search/?page=1&query=INHERITANCE%20OF%20GROWTH%20DURATION%20IN%20DOMESTIC%20AND%20INTERSPECIFIC%20F1%20PLANTS
https://theusajournals.com/index.php/ajahi


Volume 02 Issue 12-2022 35 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 02 ISSUE 12     Pages: 31-35 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705)  
OCLC – 1290679216  METADATA IF – 5.625 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
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2. Кучбоев А.Э. Популяционная экология, 

систематика нематод семейства 

Protostrongylidae и функционально-

метаболические процессы в системе 

“паразит-хозяин”.: Автореф. дис. ...док. 

биол.наук. – Ташкент, 2009. – 43 с.  

3. Кучбаев А.Э., Эгамбердиев М., Каримова Р., 

Пазилов А. Наземные моллюски-

промежуточные хозяева протостронглид // 

Узбекский биол.  журн. – Ташкент, 2018. -№1. 

– С. 15-20. 

4. Пазилов А., Кучбаев А. Ўзбекистонда уй ва 

ёввойи ҳайвонлар гельминтларининг оралиқ 

хўжайини-қуруқлик моллюскалар 

(Аниқлагич-Атлас). – Тошкент, 2017. – 79 б. 

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https://www.mendeley.com/search/?page=1&query=INHERITANCE%20OF%20GROWTH%20DURATION%20IN%20DOMESTIC%20AND%20INTERSPECIFIC%20F1%20PLANTS
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