Effect of Neem Azal T/S on Some Biological Aspects of Chrysoperla carnea Steph. and Coccinella undecimpunctata L. and their Protein Contents

Effects of Neem Azal T/S on the predaceous insects; Chrysoperla carnea Steph. and Coccinella undecimpunctata L. were evaluated. Experiments were carried out using three concentrations; 50, 100, and 200ppm When larvae of predators fed on sprayed aphid nymphes, larval mortalities, 72 h post treatment,, at low (50ppm) and high (200ppm) concentrations were 26.1 and 43.4\% for Ch. carnea and 28.6 and 52.4 \%for C.,undecimpunctata, respectively. The corresponding percentages of survivors failed to pupate, due to the latent effect of Neem Azal T/S, were 5.88 \& 23.07\% and 6.67 \& 20.0\%, respectively. In case of topical application of larvae, larval mortalities, 72 In post treatment, at low (50ppm) and high (200 ppm) concentrations were 31.8 and 54.5\% for Ch carnea and 42.9 and 52.4\% for, C. undecimpunctata, respectively. The corresponding percentages of survivors faild to pupate, due to the latent effect of Neem AzalT/S, were 13.33 \& 30\% and 8.33 \& 20\%, respectively. However, no or negligible effects were found in two treatments on adults emergence percentages from normally formed pupae in both. species. Protein analysis of C. undecimpunctata adults was carried out using the electrophoresis technique. Data showed that the molecular weight, ranged between 23-119 kD, 23-118kD, 20-118 kD and 23-118 kD, at the concentrations 50 100, 200 ppm and control, respectively. In conclusion, NeemAzal T/S should be used safely at relatively low rates of application.