Evaluation of efficacy of botanical extracts against Aphis craccivora Koch infesting Vigna radiata (L.) Wilczek
DOI:
https://doi.org/10.48165/jefa.2026.21.1.8Keywords:
Aphid, ladybird beetle, mung bean, south Gujarat, yield.Abstract
The study aimed to assess the effectiveness of various botanical extracts at 5 per cent concentration of each of neem leaf, neem seed kernel, custard apple leaf, garlic bulb, datura leaf, aak leaf, and green chilli against aphid, Aphis craccivora (Homoptera: Aphididiae) in mung bean, Vigna radiata (Fabaceaea), at Soil and Water Management Research Unit Farm, Navsari Agricultural University, Navsari, Gujarat during the summer of 2021-22. Among different extracts tested, the neem seed kernel extract proved to be most effective, successfully reducing the A. craccivora population to 0.35 per trifoliate leaves. In contrast, the aak leaf extract exhibited the least effectiveness, with a recorded A. craccivora population of 1.12 per trifoliate leaves. Notably, the population of ladybird beetles remained unaffected by any of the tested botanical extracts, indicated their safety for natural enemies. The highest number of pods per plant was observed in plots treated with neem seed kernel extract, yielding a mean of 42.93 pods per plant, while the control plots showed a significantly lower mean of 29.33 pods per plant. Additionally, the maximum yield was recorded in the neem seed kernel extract treated plots at 777.78 kg ha-1, whereas the control plots yielded only 354.94 kg ha-1.
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