The release time of a Trichogramma should correspond to the occurrence period of the corn quail eggs. The number of bees to be released is 10,000 to 20,000 bees per acre and 10,000 bees per time. The method of putting the bee is to set 1 to 3 release points per acre. Select one of the middle leaves of the corn plant with a bee and place the paper bee bag on the main vein of the back of the blade with a toothpick.
Second, we must accurately master the development of bee eggs.
Third, do not mix Trichogramma with pesticides and fertilizers to prevent direct sunlight and avoid direct washing of rainwater.
Fourth, in the event of light rain, bees can continue to put bees, in case of heavy rain, the bee on a flat in the cool dark place, immediately after the rain bee.
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