Effect of different neem formulations as soil application at different doses against Heterodera cajani infecting pigeonpea

摘要

A pot culture study was conducted to observe the effect of different neem formulations viz., neem seed powder, Field Marshal~(R), Neemgold~(R) and Nimbecidine~(R) at two different doses i.e. @ 50 and 100 kg/ha as soil application against H. cajani infecting pigeonpea It was observed that all the treatments gave good results in terms of plant growth parameters and nematicidal action and were superior to check with nematode. The performance of neem seed powder at both doses i.e. @ 50 and 100 kg/ha wasfound to be most effective in the suppression of the nematode population significantly and maximum production of plant growth parameters, followed by Nimbecidine~(R) @ 100 1/ha. Amongst all the treatments, Field Marshal~(R) was found least effective asit provided minimum plant growth parameters and minimum reduction in nematode population at both the doses (i.e. @ 50 and 100 l/ha).