ABSTRACT Mulberry which forms the exclusive source of food for commercial silk producing silk worm (Bombyx mori L.) is affected by a number of diseases and pests. The aerobiology of crop field was very limited and much of the fields were to be opened for investigation. It affects the nutrition, growth and cocoon production of silkworm. Hence a detailed investigation was carried out on the aerobiology of mulberry fields in Vellore district. The Vellore district comprises of eight taluks, 14 ranges and 64 subdivisions. Much of the Vellore district land area is cultivated by Mulberry as a cottage industry. It is found that from October to January rainfall was maximum, Vaniyambadi, Tirupattur and Gudiyattam receives maximum rain. The humidity is relatively maximum during the period of October to September 1999. The temperature was maximum from March to June. This helps for the spread and growth of various microflora and airspores in Vellore district environs. From these data, the causative organisms of various diseases of Mulberry were identified. This data will be helpful for the treatment, management of the much useful plant Mulberry in Vellore district
