Performance of some plant cakes against plant parasitic nematodes in tea

Abstract

An experiment was conducted to study the performance of some indigenous plant cakes against plant parasitic nematodes in tea at Entomology Laboratory, Bangladesh Tea Research Institute (BTRI), Srimangal, Moulvibazar during August 2014 to November 2015. Indigenous crude plant cakes of Marigold (Tagetes sp.) (leaves, flowers and stems), Karanja (Pongamia pinnata) (leaves and fruits), Chirota (Swertia chirayaita) (leaves and stems), Neem (Azadirachta indica) (leaves) and Mahagoni (Swietenia mahogani) (seeds) were selected for the study. Each treatment was replicated thrice. Soil samples were analyzed in the Nematology Laboratory, Entomology Division for the counting of the nematodes. Extraction was done by Baermann Funnel Method with slight modification. Then nematodes were counted through Stereoscopic microscope. The result revealed that the treatment differences were found to be statistically significant (P