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5, small floor tiger food is very mixed. The newly hatched larvae cluster day and night on the back of the heart or leaves of the crop seedlings, biting the leaves into holes or holes. After 3rd year of age, it enters the gluttony stage. It hides under the surface of the earth during the day and the day will shine out of water. The corn will be cut off from the ground at a height of 3-4 cm and the seedlings will be pulled into the hole for feeding. Control methods: (1) Weeding and disinfestation: Weeds are the main sites for laying eggs, and they are also the hazard bridges for larvae migration to corn seedlings. (2) Pile trapping: Kill 5% trichlorfon with rice bran + peanut bran or bean cake, disperse 10 piles per acre in the evening, pile half a catty, cover fresh young grass, induce young tiger larvae. Come to eat.

6, Mythimna separata larvae eat leaves, large crops can eat light, larvae have gregarious, omnivorous, overeating, adult migration. In the South China region, which breeds for 6-8 generations year-round, the adult lurks in the grass and the field, and the only bees are active during the night. After hatching, the larvae gather in the leaves of the corn, the back of the leaves, etc. The larvae are frightened by drooping drooping or curling and landing to suspend animation. Control methods: (1) trapping adult worms: use sugar, vinegar, wine + enemies 100 worm pots to kill adults, or grass to lure adults to lay eggs, or use black light traps to kill adults. (2) Chemical control: 1,000 times the shaking grams, 1000 times the golden century, 2000 times the Mobilang, 1000-1500 times the thousand insects.

7. Spodoptera litura, Spodoptera littoralis, Spodoptera exigua, and cotton bollworms feed on the leaves before the 3rd instar, resulting in nicks. After the 3rd instar, they feed on the ear, which results in bad rot. Drugs for prevention and cure: Before the third instar, it is 1500 times as much as the golden century, 1000 to 15,000 times the shaking grams, 3000-4000 times the exercise time, and 1500 times or 1,000 to 1,500 times the length of the game.

8, adult worms and nymphs eat leaves, affecting crop growth. Control methods: 1000 grams of shake, 1000 times of the golden century, 2000 times of Mobilang or 1000-1500 times of 1000 insects.

9, Hummer, also known as palm thrips, adults and nymphs are sucking shoots of young leaves, flowers and young fruit sap, the victim hardened, atrophy. Control methods: Ake Thai 3000 ~ 7500 times, 20% of fenvalerate EC 4000 times, 10% imidacloprid WP 2000 times, 1.8% Ai Fu 2000 times or 1000 worms 1500 times spray.