screening elite genotypes and ipm of defoliators in groundnut

Table 17: Natural enemy population in different IPM modules of groundnut (Syrphids)
Module I
Treatment
(Groundnut + sunflower)
Module II
(Groundnut + foxtail millet)
Module III
(Farmers’ practice)
Paired “ t” test value for comparison of means
Syrphid population / m row
21 DAS 28 DAS 35 DAS 42 DAS 49 DAS 56 DAS 63 DAS
1.80 2.00 2.40 2.70 2.60 1.80 1.40
2.60 2.80 3.60 3.90 3.20 3.00 2.60
1.10 1.40 1.60 1.80 1.80 1.20 1.00
Module I & Module II 4.00* 6.00* 6.10* 6.00* 5.72* 3.20* 6.00*
Module II & Module III 6.71* 5.72* 6.32* 8.57* 5.71* 9.00* 6.35*
Module III & Module I 3.50* 2.44 4.00* 9.00* 4.00* 1.50 1.63
* Significant at 5% level DAS- days after sowing
Module-I : Seed treatment with Trichoderma, sunflower (trap crop), pheromone trap and spraying of N. rileyi and NSKE
Module-II : Seed treatment with Trichoderma, foxtail millet (intercrop), pheromone trap and spraying of Emamectin benzoate
Module-III: Spraying of quinalphos