Peppers are susceptible to pests, how to prevent them? What medicine is good to use?

Plant peppers and other crops separately to avoid infection, once you get sick, you can use special insecticides for plants, spray them evenly on the leaves of plants, and do not water them during the medication, otherwise there is no effect.

Use poison bait to trap and kill. Use the fried wheat bran or soybean cake 5 kg per mu with the same amount of water to mix well, then add 20 grams of 90% trichlorfon crystals, fully dissolve and mix well, place the seedbed at the edge of the field in the evening, or use 1 2 kg of dry rice per mu, cook until half-cooked, dry until semi-dry, add 5% trichlorfon powder about half a catty and stir, and apply the edge of the furrow.

<> what drugs to use to control pepper pests mainly depends on the type of pest, because different types of pests need to use different drugs to kill, such as aphid control can be sprayed with anti-aphid, chrysanthemum emulsifiable concentrate and other drugs; To control tobacco insects, you can spray Uranus emulsifiable concentrate, kung fu emulsifiable concentrate and other drugs, and insist on spraying; For the control of Spodoptera exigua, drugs such as phoxanthion EC or mapelik EC can be sprayed.

Capsicum yellowing virus disease. The diseased plants begin to turn yellow from the young leaves, and then a large number of leaves, flowers and fruits fall. After the onset of the disease, you can choose to use 500 times of 20% virus A wettable powder, or 400 times of virus K300, or 1000 times of phytolingin emulsifiable concentrate, or 100 times of NS-83 anti-antagonist, or 400 times of cupramia mixture mixed with zinc sulfate for spray control, add growth regulators (sodium nitrification, brassin, etc.), spray 1 time in 7 10 days, and spray 2 3 times.

1.The main diseases of pepper are: pepper anthracnose, pepper scab, green pepper virus disease 2The main pest of chili peppers is cotton bollworm.

a) Pepper anthracnose.

1.Symptoms: The fruit is brown in disease, slightly concave, round or irregularly shaped, water-stained, with a circular ring pattern, with small black dots on it, and these spots are light and small.

When wet, there are moist discoloration rings around the lesion, which are dry and prone to shrinkage and breakage. The disease can also be found on the leaves, and the lesions are water-stained yellow spots at the beginning, gradually brownish, **grayish-white, round or irregularly shaped, and have small spots.

2.Prevention and control methods.

1) Implement a 3-5 year rotation and leave seeds on disease-free fruit plants.

2) Sterilize the seeds, soak the seeds in 55 hot water for 10 minutes, immediately move to cold water to cool, and then germinate. Or pre-soak the seeds in cold water for 10 hours, then soak them in 1% copper sulfate solution for 5 minutes, mix a small amount of saltpeter lime or plant ash after removing them, neutralize them and then sow them.

3) Increase phosphorus and potassium fertilizer to prevent excessive nitrogen and weak plants.

4) Pesticide control: when the fruit is close to maturity, spray lime equivalent Bordeaux solution, or 75% chlorothalonil 600 times solution, or 50% methyl tobuzine 1000 times solution, or "40L" antibacterial agent 500 times solution, 7-10 days for 1 time, 2-3 times in a row.

Professor Xinong Shi Chunxi; Common pests and diseases of pepper and their control methods.