The invention provides feed for adult
coccinella septempunctata. The feed includes the following raw materials: milk
powder,
corn oil,
protein powder, egg and water. The invention also discloses a preparation method of the feed. The method includes the steps of: (1) firstly
cutting the raw
pork liver into strips with a cutter, and then performing
mashing into mud; (2) juicing fruits; (3) stirringthe substances evenly; (4) additionally weighing and adding
agar and water into a pot, performing heating on an electromagnetic oven until the
agar completely melts, taking out the
agar, and when theagar cools to certain temperature, pouring the molten agar into the evenly stirred substances in the
beaker involved in step (2), then fully mixing the materials, then conducting subpackaging in a culture dish, performing cooling to
room temperature, then conducting sealing with a sealing film, putting the product into a refrigerator at 8DEG C and conducting preservation for standby use. The invention has the advantages that after application to feeding of adult
coccinella septempunctata, the feed can make the weight, pupation rate, eclosion rate and
reproductive capacity of the adult
coccinella septempunctata approach the level of those fed by natural enemy aphids, also the preparation method of the feed is simple, and easy for large-scale operation, and the feed is easy for storage and large-scale popularization.