Lethal and sublethal effects of propargite, benomyl, haloxyfop etotyl, imidacloprid and chlorpyrifos on life table parameters of egg parasitoid, Trichogramma brassicae (Hym.; Trichogrammatidae)

Document Type : Paper, Persian

Authors

1 Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz

2 Agricultural Service Center of KhodaAfarin, East Azarbaijan, Iran

3 Department of Plant Protection, University of Tabriz

Abstract

Trichogrammabrassicae Bezdenkois an important egg parasitoid of several lepidopteran insect pests. The parasitism potencial of this parasitoid is affected by insecticides applications. In this study, lethal and sublethal effects of propargite, benomyl, haloxyfop etotyl, imidacloprid and chlorpyrifos were evaluated on different life stages and biological parameters of the insect. Bioassays were carried out by residual contact method on adult stage of the parasitoid at 26±1 , 70±5% RH and a photoperiod of 16: 8 (L: D) h. The LC50 values of propargite, benomyl, haloxyfop etotyl, imidacloprid and chlorpyrifos were 753, 1190, 1731.6, 5.85 and 1.96 mg a.i./L on adult T. brassicae, respectively. The results of bioassays on adult stage showed that chlorpyrifos had the highest toxicity compared to the other tested pesticides. Field recommended rate of the pesticides excluding chlorpyrifos showed lower adverse effects on immature stages of the parasitoid. According to IOBC standards, propargite, benomyl, haloxyfop etotyl and imidacloprid were classified as harmless and chlorpyrifos as slightly harmful at immature stages. The sublethal effect studies revealed that LC30 of chlorpyrifos and propargite negatively affected the fecundity and fertility of the females; but the other pesticides did not. Intrinsic rate of increase (rm) values for propargite, benomyl, haloxyfop etotyl, imidacloprid and chlorpyrifos were 0.344, 0.322, 0.338, 0.337, 0.334 and 0.318 (female offspring/female/day), respectively. Results showed that almost all pesticides excluding chlorpyrifos had less adverse effects on the parasitoid. Therefore, propargite, benomyl, haloxyfop etotyl and imidacloprid can be choose for further evaluation including semifield and field studies. Whether getting suitable results in field studies they would be used in combination with T. brassicae as biological control agent in integrated pest management (IPM) programs.

Keywords

References

Abdelgader, H. & Hassan, S.A. (2012) Effects of botanical insecticides on the egg parasitoid Trichogramma cacoeciae Marchal (Hym. Trichogrammatidae). Third International Scientific Symposium "Agrosym Jahorina”, PP.445-450.
Alan, J.D. & Daniel, R.E. )1982( Life table evaluation of chronic exposure of Eurytemora affinis (Copepoda) to kepone. Marin Biology 66(2), 179-184.
Biondi, A., Desneux, N., Siscaro, G. & Zapala, L. (2012) Using organic-certified rather than synthetic pesticides may not be safer for biological control agents: Selectivity and side effects of 14 pesticides on the predator Orius laevigatus.Chemosphere 87(7), 803-812.
Carey, J.R. (1993) Applied Demography for Biologists with Special Emphasis on Insects. 205 pp. Oxford University Press, Inc.
Carvalho, G.A., Reis, P.R., Rocha, L.C., Moraes, J.C., Fuini, L.C. & Ecol, C.C. (2003) Side effect of insecticides used in tomato field on Trichogramma pretiosum (Hym.; Trichogrammatidae). Maringa 25(2), 275-279.
Consoli, F.L., Para, J.R.P. & Hassan, S.A. (1998) Side effect of insecticides used in tomato fields on the egg parasitoid Trichogramma pretiosum Riely (Hym.; Trichogrammatidae), a natural enemy of Tuta absoluta (Meyrick) (Lep.; Gelechidae). Journal Applied Entomology 122, 43-47.
Croft, B.A. (1990) Arthropod Biological Control Agents and Pesticides. 723 pp. New York, NY: Wiley.
Desneux, N., Decourtye, A. & Delpuech, J.M. (2007) The Sublethal effects of pesticides on beneficial arthropods. Annual Review of Entomology 52, 81-106.
Ebrahimi, E., Pinturea, B. & Shojai, M. (1998) Morphological and enzymatic study of the genus Trichogramma in Iran (Hym.; Trichogrammatidae). Applied Entomology and Phytopathology 66, 122-141.
Hassan, S.A. (1998) The side effects of 161 pesticides on egg parasioid , Trichogramma cacoeciae Marchal (Hymenoptera, Trichogrammatidae). Mitteilungen aus der Biologischen Bundesanstalt für Land- und Forstwirtschaft, Berlin-Dahlem 356: 63-76
Hassan, S. A. (1993) The mass rearing and utilization of Trichogramma to control Lepidopterous pests: achievements and outlook. Pesticide Science 37(4), 387-391.
Heravi. P. (2016) Handbook of advances in cotton IPM. 60 pp. Ministry of Jahad-E-Agriculture, Agricultural Research , Education and extension Organization Cotton Research Institute of Iran.
Khan, M.A., Khan, H., & Ruberson, J.R. (2015) Lethal and behavioral effects of selected novel pesticides on adults of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae). Pest Management Science 71(12), 1640-1648.
Mahdavi, V., Saber, M., Rafiee-Dastjerdi, H. & Kamita S.G. (2015) Lethal and demographic impact of chlorpyrifos and spinosad on the ectoparasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae). Neotropical Entomology 44(6), 626-633.
Saber, M. (2011) Acute and population level toxicity of imidacloprid and fenpyroximate on an important egg parasitoid, Trichogramma cacoeciae (Hymenoptera: Trichogrammatidae). Ecotoxicology 20(6), 1476-1484.
Saber, M., Hejazi, M.J., Kamali, K. & Moharramipour, S. (2005) Lethal and sublethal effects of fenitrothion and deltamethrin residues on egg parasitoid Trissolcus grandis (Hymenoptera: Scelionidae). Journal of Economic Entomology 98(1), 35-40.
Sohrabi, F. & Amini, E. (2015) Effect of pesticides used in tomato fields of Iran on the egg parasitoid Trichogramma brassicae (Hymenoptera: Trichogrammatidae) under laboratory conditions. Biological Forum 7(2), 975-980.
Sorokina, A.P. (1999) Trophic links of species of the genus Trichogramma West. (Hym.; Trichogrammatidae) of the world fauna. Entomology Review 79(2), 125-132.
Souza, J.R., Carvalho, G.A., Moura, A.P., Couto, M.H.G. & Maia, J.B. (2014) Toxicity of some insecticides used in maize crop on Trichogramma pretiosum (Hymenoptera, Trichogrammatidae) immature stages. Chilean Journal of Agricultural Research 74(2), 234-239.
Stara, J., Ourednicjova, J. & Kocourek, F. (2011) Laboratory evaluation of the side effects of insecticides on Aphidius colemani (Hymenoptera: Aphidiidae), Aphidoletes aphidimyza (Diptera: Cecidomyiidae), and Neoseiulus cucumeris (Acari., Phytoseidae). Journal of Pest Science 84(1), 25–31.
Stark, J.D. & Banks, J.E. (2003) Population-level effects of pesticides and other toxicant on arthropods. Annual of Review Entomology 48(1), 505-519.
Stark, J.D., & Banks, J.E. (2001) Selective pesticides: Are they less hazardous to the environment?, BioScience 51(11), 980-982.
Suh, C.P.C., Orr, D.B. & Van Duyn, J.W. (2000)  Effect of insecticides on Trichogramma exiguum (Trichogrammatidae: Hymenoptera) preimaginal development and adult survival. Journal of Economic Entomology 93(3), 577-583.
Wright, D.J. & Verkerk, R.H.J. (1995) Integration of chemical and biological control systems for arthropods; evaluation in a multitrophic context. Pest Management Science 44(3), 207–218.
Zhao, S.H. (2000) Plant Chemical Protection. 337 pp. China Agricultural Press, Beijing, China.

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