Seasonal fluctuation, vertical and horizontal distribution of Xiphinema basiri in the soil

The study on the distribution pattern of the nematode in the soil in field condition around the roots of west Indian cherry trees revealed that the nematode population was consistently high at 10–15 cm depth and at 120 cm to 180 cm away from the tree trunk Observation made in the microplots of mulberry have aho shown the pesence of high population of X. basiri at 10–15 cm depth from the soil surface. The data gatherd on the population prevailed under field conditions in the soils around west Indian cherry trees for a period of one year indicated two peak Geriods of increased nematode population, the first being in the months of November to February and the second in April and May. In the soils of mulberry maintained under microplot condition, similar trend was noticed viz., two peak periods of nematode population in the months of November to January and April to June.