Assessment of Insecto-Acaricides Against Sucking Pests of Groundnut
SUBASHREE R *
Odisha University of Agriculture and Technology, Bhuvaneshwar 751003, Odisha, India.
ARUNDHATI SASMAL
Odisha University of Agriculture and Technology, Bhuvaneshwar 751003, Odisha, India.
TARUN KSHATRIYA T *
Tamil Nadu Agricultural University, Coimbatore 641003, India.
TRIBIKRAM SAMAL
Odisha University of Agriculture and Technology, Bhuvaneshwar 751003, Odisha, India.
SANDEEP KUMAR
Odisha University of Agriculture and Technology, Bhuvaneshwar 751003, Odisha, India.
C. M. KHANDA
Odisha University of Agriculture and Technology, Bhuvaneshwar 751003, Odisha, India.
*Author to whom correspondence should be addressed.
Abstract
Groundnut, a predominant oilseed crop is prevalently attacked by sucking pests contributing to a greater yield loss in Odisha. To mitigate this problem, a field investigation has been carried out in OUAT by the combination of seed treatment and insecto-acaricides against major sucking pests of groundnut. Imidacloprid 600FS@10ml/kg was used for seed treatment and chemicals such as Diafenthiuron 50%WP@600g/ha, Spiromesifen 22.9%SC@400ml/ha, Chlorfenapyr 10% SC@1000ml/ha-1, Fenpyroximate 5% EC@1000ml/ha, Pyriproxifen 10% EC @500ml/ha and Hexythiazox 5.4%EC @500ml/ha were applied as foliar spray on 30 and 45 days after sowing. The treatment comprising of Seed treatment with Imidacloprid 600FS@10ml/kg of seeds followed by two foliar spray applications of Diafenthiuron 50%WP@600g/ha recorded a significantly lower population of 0.93 thrips/leaf, 0.80 whiteflies/leaf, 1.00 jassids/leaf, 0.91 aphids/leaf and 0.41 red spider mites/leaf. This treatment was also found relatively safer to natural enemies and it produced the highest yield of 3.40 tonnes/ha with an ICBR ratio of 1:4.94.
Keywords: Seed treatment, imidacloprid, diafenthiuron, thrips, whiteflies, aphids, jassids, red spider mites, natural enemies, yield