PATHOGENICITY EFFICACIES OF BEAUVERIA BASSIANA AND NANOBEAUVERICIN SOME TOMATO SERIOUS PESTS AND THEIR PREDATORS
M. Sabbour. International Educational Applied Scientific Research Journal2 (2):
The effect of the fungi Beauveriabassianaand Nano-Beauvericin on the target insect pest show that, under laboratory condition the LC50s obtained 65.3x 104 and x 104conidia/ml for B. tabaci after treated with different concentrations of Beauveriabassianaand nano-Beauvericinrespectively. The LC50s for M. persicae recorded 51.4 x 104andx 104conidia /ml after treated with the corresponding pathogen.
Under field condition in El Esraa (Nobarya) the data obtained detect tat, the M. persicaesignificantly decreased to 8±9.6, 18±9.1and 25±9.6individuals after post applications of Nano-Beauvericintreatments after 50, 90 and 120 days. When B. tabacitreated with Beauveriabassianathe individuals significantly decreased to 33±9.4, 38±6.4, and 47±8.2individuals as compared to 49±1.4, 79±4.9, 91±5.7 and individuals in the control after20, 50, 90 and 120 days respectively. El-Kassaseen (Ismailia) governorate, both of the target insect pests significantly decreased.
The experiments in the field showed that, in two governorates, the tomato infestation with B. tabaci or M. psicae significantly decreased after treatments by Beauveriabassianaandnano-Beauvericinas compared to control plants.