Survey on natural occurrence

Roving surveys were taken from September 2015 to 2017 covering Theni and Dindigul districts of Tamil Nadu, India aiming to document the occurrence of major insect pests and their natural enemies in cauliflower crop at different elevations.

11p caygaocaolon8 07-11-2020 4 2   Download

Fungi that occur inside an asymptomatic plant tissue are known as fungal endophytes. Since a decade there has been high focus on artificial establishment of entomopathogenic fungi as an endophyte in various agricultural and horticultural crops for pest management. But meagre efforts are made to identify their natural occurrence. Keeping this in view, Survey has been conducted in maize at definite phenophases of crop growth i.e. Seedling stage, knee height stage and reproductive stage.

8p cothumenhmong4 23-03-2020 14 3   Download

Extensive survey was conducted for collection of insects cadavers from agriculture fields and forest area and isolated different entomopathogenic fungi viz,. B. bassiana, M. anisopliae, Nomurea rileyi from different crops i.e. Soybean, groundnut, Pigeonpea crop insects. The infected insects cadavers was covered partially or fully with powdery white to green spores. Presence of powdery spores on insects revealed B. bassiana infection, green spores depicts infection of M. anisopliae or Nomuraea rileyi. N.

9p nguaconbaynhay3 07-02-2020 10 1   Download