18.5 33.3 Repellency under lab condition and the decreased in population in field trials over time were evaluated to calculate the percentage of repellency. The percentage of repellency increased with increased in the concentration. From the results obtained, with increasing concentration, the feeding deterrent also increased. The degree of protection was also very significant under different treatment.
Antifeedant activities is the strongest one, followed by contact toxicity.
The strong antifeedant combination with repellency effect lead to the weak stomach poison toxicty.