EFFECTS OF THE BIOPESTICIDE AND THE PEANUT VARIETY (ARACHIS HYPOGAEA L.) ON INSECT PESTS AND DISEASES OF THE SPECIES AT THE INRAN EXPERIMENTAL STATION IN DIFFA

The present study, conducted on the site of the National Institute for Agricultural Research of Niger (NIRA) in region the of Diffa (Niger), focused on the effects of some biopesticides and a chemical pesticides mixture. The objective is to compare the insecticidal and/or repellent effects of organic and chemical pesticides on groundnut pests and diseases. The biopesticides tested are neem almond juice, garlic juice, tobacco porridge and chili pepper juice at 10% each, and the chemical pesticide consisting of a mixture of fungicide and insecticide. In order to compare these effects with a baseline situation, controls where groundnut plants were not administered biopesticides or chemical pesticides were used. One trial with an experimental total randomisation design with 24 treatments and 3 replicates was conducted. The results showed that the chemical pesticide and neem juice were found to be more effective against groundnut pests and diseases. Other biopesticides, although not the best yield of pods and grains, have reduced the damage of pests and diseases to the crop. The ACP has shown that the V2P5, V3P1 and to a lesser extent V1P5 treatments are characterized by a good yield of pods, grain and biomass unlike the V1P0, V3P0, V4P0 and V2P0 treatments which are characterized by many leaves attacked by pests and yellowing and many rotten pods. In addition, the V2P0, V2P2, V2P3, V2P1 and V4P5 treatments are characterized by a lot of rotten pods, roots and crowns. The CAH suggested seven (7) groups. The G1 group is made up of controls characterized by pest and disease attacks, while the G6 and G7 groups mainly include the chemical pesticide and neem, which have been shown to be more effective. At the end of this study, we can therefore recommend the use of biopesticides to producers.