Symptoms: the disease mainly damages the leaves, buds and young stems. At the beginning of the disease, there will be many white dust spots on the leaves, which will gradually spread, causing the old leaves to shrink and the young shoots to shrink.
Prevention and control: for this disease, it can spray 800-1000 times liquid of 70% thiobacillin wettable particles. Generally, it needs to spray once every 7-10 days, and it can be cured after about 2-3 times.
Symptoms: this pest mainly damages the leaves and young ears, leading to dry spots in the affected areas. These pests will suck juice, leading to its nutrient deficiency and atrophy.
Prevention and control: 2.5% deltamethrin emulsion can be used, and then mixed into solution to spray, so as to effectively spray.
Symptom: this insect pest is high in summer. After the occurrence of insect pest, the leaves will gradually turn yellow and white. If effective measures are not taken all the time, it will cause wilting.
Prevention and control: when these situations occur, the diseased leaves can be removed directly. If the leaves suffer more damage, they can be treated by spraying medicine, such as dicofol.
Symptom: the insect will gather on the leaves, causing problems in the plant.
Prevention and control: during the maintenance period, it is necessary to do a good job of maintenance to prevent insect damage. If insect damage is found, it is necessary to spray chemicals in time, such as Omethoate.
