Toxicological and biochemical studies for chlorpyrifos insecticide on some mosquito larvae and their associated predators

Mohammed, Shaimaa H.; Eltaly, Randa I.; Salem, Hend H.

doi:10.1080/2314808x.2022.2062552

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…Therefore, low prey densities could explain the low predation rates observed in this study. Some studies have however shown that some predators (dragonfly and mayfly) are more effective against early instar larvae and predation decreases with increased larval instar stage [ 39 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of predators on Anopheles arabiensis and Anopheles funestus larval survivorship in Homa Bay County Western Kenya

Orondo,

Zhou,

Ochwedo

et al. 2023

Malar J

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Background The rise of insecticide resistance against malaria vectors in sub-Saharan Africa has resulted in the need to consider other methods of vector control. The potential use of biological methods, including larvivorous fish, Bacillus thuringiensis israelensis (Bti) and plant shading, is sustainable and environmentally friendly options. This study examined the survivorship of Anopheles arabiensis and Anopheles funestus larvae and habitat productivity in four permanent habitat types in Homa Bay county, western Kenya. Methods Predator densities were studied in a laboratory setup while habitat productivity and larval survivorship was studied in field setup. Results Fish were observed as the most efficient predator (75.8% larval reduction rate) followed by water boatman (69%), and dragonfly nymph (69.5%) in predation rates. Lower predation rates were observed in backswimmers (31%), water beetles (14.9%), water spiders (12.2%), mayflies (7.3%), and tadpoles (6.9%). Increase in predator density in the field setup resulted in decreased Culex larval density. Larval and pupa age–specific distribution was determined and their survivorship curves constructed. Combined larvae (Stage I–IV) to pupa mortality was over 97% for An. arabiensis and 100% for An. funestus. The highest larval stage survival rate was from larval stages I to II and the lowest from larval stage IV to pupa. Stage-specific life tables indicated high mortality rates at every developmental stage, especially at the larval stage II and III. Conclusion Determination of the efficiency of various larval predators and habitat productivity will help with the correct identification of productive habitats and selection of complementary vector control methods through environmental management and/or predator introduction (for instance fish) in the habitats.

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Section: Discussionmentioning

confidence: 99%

Effect of predators on Anopheles arabiensis and Anopheles funestus larval survivorship in Homa Bay County Western Kenya

Orondo,

Zhou,

Ochwedo

et al. 2023

Malar J

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“…So, P. flavescens of the order Odonata is considered the most frequently associated insects' species in all the seven studied areas. Recently, Mohammed et al (2022) reported that mosquitoes have many natural enemies such as invertebrate predators, which play an important role in reducing the mosquito larval populations. Odonata (dragonfly) is considered one of the common predators for mosquito control and play an important role in mosquito control many years.…”

Section: Incidence Of Associated Insects' Speciesmentioning

confidence: 99%

Highlights on Insects and Fungi Associated with Mosquitoes Inhabiting Agricultural Drain Water in Different Areas of Assiut Governorate, Egypt

Abdel-Galil,

Morsy,

Farghal

et al. 2023

AJAS

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The objective of the study was to determine the species composition of mosquitoes and their associated insects and fungi inhabiting drain water in different agricultural areas of Assiut governorate, Egypt. During 72 inspection visits and 164 examinations of drain water pools in seven areas of Assiut governorate, results indicated the presence of six identified mosquito species. Culex pipiens is considered the most frequent mosquito species with the highest Incidence Area Weight value IAW21. All six identified mosquito species were encountered in El-Badary area with an Incidence Species Weight ISW value of 14.Nine insect species belonging to five orders were recorded. Pantala flavescens (Odonata: Libellulidae) is considered the most frequently associated insect species in all areas. Incidence Area Weight IAW for each identified species indicated that P. flavescens had the maximum value of IAW 14. Also, the maximum value of Incidence Species Weight was ISW 22 in El-Badary area.Twenty-four fungi species were identified from agricultural drain water pools. Aquatic fungi were twenty-two species inhabiting agricultural drain water and Nine fungi species were isolated from the associated insects. Some of these species recorded as entomopathogenic fungi for mosquitoes including Fusarium oxysporum, F. solani, and F. incarnatum. The incidence values of all fungi species isolated reached the maximum of 17 in Spring. So, the associated insect species and fungi with mosquitoes in the present study can play an active role as biological control agents in Integrated Pest Management (IPM) approach. This contributes to achieving the Sustainable Development Goals (SDGs).

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Diversity oriented synthesis and SAR studies of new quinazolinones and related compounds as insecticidal agents against Culex pipiens L. Larvae and associated predator

Hekal

Ali

Haleem

et al. 2023

Bioorganic Chemistry

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Toxicological and biochemical studies for chlorpyrifos insecticide on some mosquito larvae and their associated predators

Cited by 3 publications

References 20 publications

Effect of predators on Anopheles arabiensis and Anopheles funestus larval survivorship in Homa Bay County Western Kenya

Effect of predators on Anopheles arabiensis and Anopheles funestus larval survivorship in Homa Bay County Western Kenya

Highlights on Insects and Fungi Associated with Mosquitoes Inhabiting Agricultural Drain Water in Different Areas of Assiut Governorate, Egypt

Diversity oriented synthesis and SAR studies of new quinazolinones and related compounds as insecticidal agents against Culex pipiens L. Larvae and associated predator

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