Field study for the effectiveness of some plants leaf extracts against insect Eutectona macheralis or Teak skeletonizer in forest nursery of Indore, Madhya Pradesh

摘要

The naturally occurring pesticides thus appear to have a prominent role in the development of future economical pesticides not only for agricultural and forestry crop productivity but also for the safety of the environment and public health. The harmful environmental implications of the synthetic pesticides have compelled to search for some alternative methods. This lead to increased development of compounds based on the models of naturally occurring toxins of biological origin, having various biological activities. This includes plant extract, which are now known because they are environmentally harmless and host specific. These different concentrations of plant extracts viz. Annona sqamosa leaf extract, Lantana camara leaf extract, Albizzia lebbeck leaf extract were tested for feeding inhibition properties against Eutectona macheralis insect larvae on host plant Tectona grandis. Prepared leaf extracts were tested in field condition and the most effective concentration has been worked out.