RELATING WATER MANAGEMENT REGIMES AND RICE GENOTYPES WITH OCCURRENCE OF INSECT PESTS AND DISEASES OF

The goal of the study was to see how water management regimes and/or rice genotypes affected the occurrence of rice pests and illnesses in Uganda. During the second rainy season of 2012 and the first rainy season of 2013, the investigation was done in phased field trials under natural settings. The trials were set up in a split plot with three replications using a Randomised Complete Block Design. The major plots were alternate wetting and drying (AWD), continuous flooding (CF), and continuous drying (CD), whereas the sub-plots were rice genotypes. The stalked-eyed fly (Diopsis spp.) and African rice gall midge (Orseolia oryzivora) were the most common insect pests found in CF fields, according to the findings. During the research, illnesses such as rice blast, brown spot, grain rot, rice yellow mottle virus (RYMV), and sheath rot were discovered in rice. Rice blast and brown spot were the most common illnesses (>10 percent occurrence), with brown spot being more common under AWD and RYMV being more frequent under CF. Rice genotype determined the level of occurrence of rice blast and RYMV in the different water management regimes. In general, various genotypes displayed varied incidence profiles for insect pests and illnesses. As a result of these findings, determining the optimum water management regime for efficient integrated pest management requires information of the most limiting pest/disease. However, more experimental trials in diverse agro-ecological zones are needed to confirm these findings.

Please see the link :- https://www.ikprress.org/index.php/JOGAE/article/view/604