Annals of Plant Protection Sciences
Year : 2003, Volume : 11, Issue : 1
First page : ( 31) Last page : ( 34)
Print ISSN : 0971-3573. Online ISSN : 0974-0163.

Field Efficacy of Insecticides Against Pod bug [(Clavigralla gibbosa (Spinola)] and Pod fly (Melanagromyza obtusa Malloch) Infesting Pigeonpea

Kumar Akhilesh¹, Nath Paras

Department of Ent & Agri Zoology, Institute of Agricultural Sciences, B H.U, Varanasi, 221005

¹Indian Institute of Vegetable Research (ICAR), I, Gandhi Nagar, Varanasi, 221005, India

Abstract

All the insecticides, each applied in two different schedules were found significantly superior over the control in reducing the pest population. The order of efficacy in case of pod bug and pod fly was monocrotophos > endosulfan > cypermethnn > fenvalerate > deltametnn > carbaryl (D) > malathion (D) > control The insecticides applied two times first at flowering and podding stage and second at 25 days after the first application was significantly superior over the single application i.e at flowering and podding stage. The temporal population distribution of pod bug exhibited significant difference and the maximum population was recorded on 18^th December and minimum on 1^st January while it was vice-versa in case of pod fly. The maximum grain yield was obtained in monocrotophos treated plots (18.28 q/ha) as compared to control plots (9.78 q/ha).

Top

Keywords

Clavigralla gibbosa, Cajanus cajan, Melanagromyza obtusa, Insecticides.

Top