Population dynamics of foliar nematode (Aphelenchoides besseyi Christie) infesting Tuberose in West Bengal
Veronica Kadam, Nihal R, Dhiren Chettri and Ajoy Kr. Mukhopadhyay
An experiment was conducted at BCKV Research Farm, Gayeshpur, during 2013-2016 to perceive the population fluctuation with references to the weather changes and to observe the changes of population in percentage of foliar nematode, Aphelenchoides besseyi Christie in tuberose. It was found that population dynamics played an important role during the changes occurred in the plants. Monitoring on nematode population during the plant growth period (cv. Calcutta Double) revealed that A. besseyi maintained maximum population during July month of rainy season that coincided with the start of heavy flush of tuberose. The least population was observed during December to February when average temperature, total rainfall and relative humidity remained quite low. Amongst the weather factors the nematode population had a positive correlation with Maximum temperature, minimum temperature, Rainfall and relative humidity in infected flowers.