Analysis of neem oils by LC–MS and degradation kinetics of azadirachtin-A in a controlled environment: characterization of degradation products by HPLC–MS-MS. Analyt Bioanalyt Chem. Graduate Theses and Dissertations. Grain losses: a major problem in Africa My Account | Use of resistant varieties is the best approach to overcoming the problems of synthetic insecticides in weevil control. “An egg hatches after five days, and the larva spends 25 days feeding on the grain. Use of resistant varieties is the best approach to overcoming the problems of synthetic insecticides in weevil control. Broad-spectrum control of more than 50 nuisance pests Effective knockdown with a long residual No odor, no visible residue Labeled for use with stored grains Key pests: Angoumois grain moth, bean weevil, confused flour beetle, granary weevil, Indian meal moth, lesser grain borer, rice weevil… > Results of the present study show that the active ingredient of NeemPro®, azadirachtin, caused high mortality of S. zeamais on the one hand and completely hindered or significantly reduced progeny emergence on the other hand, indicating its potential use in the management of maize weevil. At the highest dosage of 6 g/kg, 100, 95 and 89 % adult weevil mortality was achieved in CLH103, CMS8501 and SHABA, respectively, within 14 days of exposure. [20] evaluated the effectiveness of NeemAzal PC KG 0.1 (0.1 % azadirachtin A) against S. zeamais in maize grains and found that within 14 days of exposure, maximum mortality of 99 and 100 % reduction in F1 progeny were achieved at 12 g/kg. CA and ENN conceived the idea, designed the experiments and analysed the data.
Loss caused by insects, mites and micro-organims. Finally, Probit analysis [19] was applied to determine lethal dosages causing 50 % (LC50) and 95 % (LC95) of S. zeamais mortality at 3, 7 and 14 days after treatment. The number of F1 progeny produced was also log-transformed (x + 1). Approximately, 500 g of Maize Kernels in glass jars were moisture equilibrated in an incubator for a period of one week before infesting with 300 unsexed weevils (Miller et al.,; 1969). Over a six-month period, Saeed analysed the relative damage caused by the maize weevils to the treated and untreated stored maize grain samples. This is a highly affordable and easy-to-use formulation that has also been found to be effective on moth pests of stored grains.”. covers literature review about maize, maize weevil, factors affecting maize storage, storage methods, hermetic storage, amaranth as a grain that is postulated to reduce maize weevil movement if blended with maize kernels during storage and physical disturbance of storage containers as method to control maize weevils.