MySheen

The two pests of strawberries in the greenhouse should be carefully guarded.

Published: 2024-11-06 Author: mysheen
Last Updated: 2024/11/06, Spiders are important pests in greenhouse and greenhouse cultivation; greenhouse strawberries are easy to suffer from the outbreak of red spiders in the middle and later stage of growth, dwarfing and early senescence of the damaged plants, reddish brown leaves and dry leaves, damaged flowering stage, shrinking hard fruits and increasing abnormal fruits, which seriously affect the yield and quality of fresh strawberry fruits. If the damage is serious, the output can be reduced by 30% to 4%.

Aphids mainly include peach aphid and cotton aphid, which harm leaves and petioles. Aphids can not only cause harm to strawberries, but more importantly, they can spread strawberry virus disease, so it must be strictly controlled in production. Aphids can occur seriously under high temperature and dry conditions. Spray control with 3000 times of 3% acetamiprid EC, 20000 times of 70% amyl water dispersible granules, or 2500 times of imidacloprid wettable powder. Can also hang yellow board to lure aphids. There are many kinds of leaf mites that harm strawberry, the common ones are two-spot spider mite and cinnabar spider mite. Leaf mites are very small and like to absorb juice on the young leaves or on the back of the leaves. Accelerated reproduction under high temperature, rampant harm. The damaged leaves were reddish brown, curled and withered, and the growth and development of the plant was significantly hindered. In particular, Tetranychus urticae has a wide range of recipes and strong drug resistance, which must be paid great attention to. After flowering, in order to protect the honey peak, insecticides that are very safe to bees must be used, which can be sprayed with 5% carotene EC 1000-1500 times, and sprayed again every 7-10 days.

 
0