What is the cure for corn stickworm?

For the armyworm, 2.5% Lambda-cyhalothrin is used for 40-80ml/mu, 5% Lambda-cyhalothrin is 12-18g/mu, and 20% oxothiomethasone is 80-100g/mu, 48%. Chlorpyrifos (Loss Ben) EC 30-40ml/mu, watered 40-50kg uniform spray. Control technology: (1) Chemical control. The corn field uses 20% of the larvae before the third instar to kill the pyrethroid EC 15-45 g/mu, spray 50 kg of water, or use 5% swab 1000-1500 times and 40% omethoate 1500-2000 times. Liquid or 10% Da Gongchen 2000-2500 times spray control. (2) Biological control. In the young instar larvae, the efficacy of the 200-PPM of Diflubenzuron 1-3 on the control of armyworm larvae is above 94.5%, and it does not kill natural enemies. It is safe for crops, and the amount of 200PPM does not pollute the environment.

Corn stickworm: a lepidopteran, Noctuidae, also known as marching worms, razor worms, five-color worms. Larvae: The larvae have a figure eight black pattern on the top of the head. The head is brownish-brown to red-brown. The 2nd to 3rd instar larvae are brown to gray-brown or dark red. The larvae over 4 years old are mostly black or grayish black. There are five back lines on the body, so it is also called the five-color worm. There are dark brown lines on the outside of the gastropod and there is a clear white line on the valve. Reddish brown. Adults: 17-20 mm in length, pale grayish brown or tan, male darker. There are two khaki round spots on the forewings, and a small white point below the outside round spot. There are a small black spot on each side of the white spot [1] and a dark brown twill on the top of the wing. Egg: Taro is slightly lustrous. It is white when it is first produced and gradually darkens. It is black when it hatches.

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