Tribolium confusum a serious cosmopolitan stored grain pest has become resistant to several traditional insecticides used as grain protectants. Natural terpenoids, Forskolin, Betulinic acid and Andrographolide which could mimic juvenile hormone activity are used for controlling the population of Tribolium confusum,the confused flour beetle . All the three terpenoids used were effective in inducing varied morphological abnormalities and inhibited adult emergence. They also hindered ovarian development, affecting the fertility and reproductive potentiality of Tribolium confusum. Considering...

Water quality along with its physico-chemical and biological features represent a dynamic state of ecosystem, which require constant monitoring of water bodies. The study deals with the Physico-chemical and Biological parameters of Bellal lake of Bodhan,Andhra Pradesh, India. The work was carried out on monthly basis, to know the nature of fluctuations in physico-chemical complexes and their interrelationships with biological diversity of zooplankton. The observations on the zooplankton were made with reference to their indicator value, blooms and population density. Rotifers, Cladocerans,...