The effect of different treatment schedules of Novaluron 5.25% + Indoxacarb 4.5% SC against pod borer of pigeon pea gave superlative effect over the sole insecticide Novaluron & Indoxacarb & standard check Lamda-cyhalothrin; though, all the treated plots with chemicals were significantly superior in their performance over that of control plots. Among the three selected dose of Novaluron 5.25% + Indoxacarb 4.5% SC (750, 825, 875 ml ha<sup>–1</sup>); the said chemical @ 875 ml ha<sup>–1</sup> was recorded as best in managing <italic>Helicoverpa armigera</italic> population up to harvesting period (mean 0.03% infested pod of both years), while, @ 825 ml ha<sup>–1</sup> also recorded remarkable effect on the target pest. The maximum yield (23.40 q ha<sup>–1</sup>) was obtained from the plots treated with Novaluron 5.25% + Indoxacarb 4.5% SC @ 875 ml ha<sup>–1</sup> closely followed by @ 825 ml ha<sup>–1</sup> (22.98 q ha<sup>–1</sup>). The yield increase was also of high order. Highest cost-benefit ratio (2.07) was recorded in Novaluron 5.25% + Indoxacarb 4.5% SC @ 825 ml ha<sup>–1</sup> closely followed by @ 875 ml ha<sup>–1</sup>.
Expression of Cry2Aa, a Bacillus thuringiensis insecticidal protein in transgenic pigeon pea confers resistance to gram pod borer, Helicoverpa armigera
