IDENTIFICATION OF CUTWORMS (AGROTIS SPP.) AND THEIR NATURAL ENEMIES, STUDY ON BIOLOGY OF PEST DOMINANT SPECIES AND COMPARISON OF SOME INSECTICIDES EFFECTS AGAINST TO IT IN SHAHROOD DISTRICT

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DERAKHSHAN SHADMEHRI A.

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Paper Information

Journal: Journal of Agricultural Sciences and Natural Resources Year:2002 | Volume:8 | Issue:4 Page(s): 147-158

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Title

IDENTIFICATION OF CUTWORMS (AGROTIS SPP.) AND THEIR NATURAL ENEMIES, STUDY ON BIOLOGY OF PEST DOMINANT SPECIES AND COMPARISON OF SOME INSECTICIDES EFFECTS AGAINST TO IT IN SHAHROOD DISTRICT

Author(s)

DERAKHSHAN SHADMEHRI A. | Issue Writer Certificate

Keywords

CUTWORM; AGROTIS; BIOLOGY; INSECTICIDE; NATURAL ENEMIESQ4

Abstract

Cutworms (Agroti sspp.) are the most important pests of field crops.In shahrood region following species were identified: A.segetum (Denis & Schif), A.ipsilon (Hufnagel), A.exclamationis (L.), A.spinifera (Hubner) and A.sp.near herzogi.Collection of adult insect and samples collected from pheremon traps indicated that A.segtum was the dominat species. This pest has three generation in a year and highest damage is caused by its first generation in May. Overwintering takes place in depth of 10-15 cm. of soil by 3rd and 4th larval stages. Moths activity was observed during March to November. Natural enemies were collected from larvae and were identified as:two species of parasitoid,Meteorus sp.(Hym.,Braconidae ),one species of Chalcididae and a parasitic mite,Pygmophorus sp.(Acari,Pygmophoridae). Chemical control was conducted in a randomized complete block desing with six treatments:Carbaryl 85% wetable powder,Padan 4% granul,Diple 2x (bait),Chloropyriphos 48% (spray and bait) and treatment of without insecticide in four replication at the College of Agriculture reaserch farm in Shahrood. In this study Chloropyriphus 48% (bait) was found to the most effective against this pest followed by Carbaril 85%(bait),Padan 4% (Granul),Dipel 2x (bait)and Chloropyriphus 48% (spray). The efficacy percantage using Henderson- Tilton formula following larval mortallities, Chloropyriphus (bait) 66.27% Carbaryl 64.45%,Padan 61.75,Dipel 2x 61.54% and Chloropyriphus (spray)42.27%.

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References

بررسی بیولوژی شب پره زمستانی و تعیین روشهای مبارزه با آن در مناطق سبزی و جالیزکاری اطراف تهران

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APA: Copy

DERAKHSHAN SHADMEHRI, A.. (2002). IDENTIFICATION OF CUTWORMS (AGROTIS SPP.) AND THEIR NATURAL ENEMIES, STUDY ON BIOLOGY OF PEST DOMINANT SPECIES AND COMPARISON OF SOME INSECTICIDES EFFECTS AGAINST TO IT IN SHAHROOD DISTRICT. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 8(4), 147-158. SID. https://sid.ir/paper/9570/en

Vancouver: Copy

DERAKHSHAN SHADMEHRI A.. IDENTIFICATION OF CUTWORMS (AGROTIS SPP.) AND THEIR NATURAL ENEMIES, STUDY ON BIOLOGY OF PEST DOMINANT SPECIES AND COMPARISON OF SOME INSECTICIDES EFFECTS AGAINST TO IT IN SHAHROOD DISTRICT. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2002;8(4):147-158. Available from: https://sid.ir/paper/9570/en

IEEE: Copy

A. DERAKHSHAN SHADMEHRI, “IDENTIFICATION OF CUTWORMS (AGROTIS SPP.) AND THEIR NATURAL ENEMIES, STUDY ON BIOLOGY OF PEST DOMINANT SPECIES AND COMPARISON OF SOME INSECTICIDES EFFECTS AGAINST TO IT IN SHAHROOD DISTRICT,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 8, no. 4, pp. 147–158, 2002, [Online]. Available: https://sid.ir/paper/9570/en

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