Field Trial Report of Bio-Terminator (Metarhizium Anisopllae Metchnikoff) against Termites of Tea in Bangladesh

摘要

Termites is a major pest of tea in Bangladesh tea. It is a rather persistent and pe-manent pest of tea. It normally attacks the old tea bushes as well as young tea of new plantations. They feed on dead bark, rotten and live wood of tea plants. They live on colonies making mounds in the soil or stumps of plants. Only worker castes feed on tea plants. Only worker castes feed ontea plants. Termiticides such as Chlorpyrifos, Imidacloprid, Fipronil, Thiamethoxam groups are recommended for the control of this notorious pest of tea in Bangladesh. No bio-pesticide is available at this moment. Bio-terminator is Kaolin based formulation of Metarhizium anisopllae. Bio-Terminator contains the insect pathogenic fungus Metarhizium anisopllae which is a widely distributed soil-inhabiting fungus. When sprayed on the plant, it generally enters into the insects through spiracles and pores in the sense organs and kill the insects. Metarhizium can penetrate the body of the insect & kills it by secreting a toxin calledDESTRUXIN. Attempt has been taken to evaluate a bio-pesticide, Bio-Terminator (Metarhizium anisopllae) against termites in tea.