Evaluation of Different Bio and Chemical Insecticides Against Aphids, Aphis craccivora Koch Infesting Dolichos Bean
Ankita A. Howal *
Department of Agricultural Entomology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
Shinde B.D.
Department of Agricultural Entomology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
Sanap P.B.
Vegetable Improvement Scheme, Central Experiment Station, Wakavali, India.
Ingole D.B.
Department of Agricultural Entomology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
Wankhede S.M
Department of Agricultural Entomology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
Darekar P.M.
College of Horticulture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
Patil S.P.
Department of Agricultural Entomology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
Patil A. A.
Department of Agricultural Entomology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
Salunkhe P.V.
Department of Agricultural Entomology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
Sarangkar A.S
College of Horticulture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, Maharashtra, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was carried out to evaluation of different insecticides against Aphis craccivora Koch infesting dolichos bean at Vegetable Improvement Scheme. After the first and second spray it was revealed that the treatment (Diafenthiuron) was the most effective recording number of aphids 80.65%. Treatments (Imidacloprid, Azadirachtin and Dimethoate also showed significant control, with per cent reductions of 74.86, 73.98, and 70.47%respectively. Bio insecticides Lecanicillium lecanii and Metarhizium anisopliae low significant reduction 45.98% and 29.66 %.
Keywords: Dolichos bean, Aphis craccivora, insecticides, cumulative