Planning insecticide evaluation studies. Rearing of test insects. Determining LD50 values of insecticides. Insectary evaluation of insecticides. Field evaluation of insecticides. Physical assessment of spraying systems. Sampling insect populations and estimating insect damage in field experiments. Statistical analysis of insect populations and plant damage. Data reporting and making insect control recommendations.After placing the hopper in the sachet, the sachet is closed brown planthopper feeding on around the culm. Note the the culm and the ... A plastic cup is placed over the filter paper sitting on an inverted plastic petri dish. The hoppers are placedanbsp;...
|Title||:||Manual for Testing Insecticides on Rice|
|Publisher||:||Int. Rice Res. Inst. - 1981|