At present, high temperatures, high rainfall, and high humidity are the high incidence periods of diseases and insect pests, with emphasis on the prevention and control of pests and diseases. At the SAMe time, with the increase in heavy rains this year, the drainage ditch should be cleared in time to prevent flooding.
First, ditching flood control. The garden should have good drainage conditions, and clear the drainage ditch in time to keep the drainage unobstructed.
Second, wind and soil. For the trees that are liable to be blown down by strong wind, cover soil reinforcement and support support. In particular, the newly planted big trees must be supported by brackets to prevent falling down and cause losses. The affected nursery stocks should be cultivated in order to ensure normal growth of seedlings.
Third, prevent sunburn. Sunshine gradually increased, and the shade of flowers and seedlings with hi yin should be shaded and covered with straw or thatch in the rows of seedlings to reduce surface temperature and prevent sunburn.
Fourth, pest and disease control. At present, it is the period of frequent occurrence of diseases and insect pests such as powdery mildew, leaf spot, aphid, and red spider that should be promptly controlled. Can be sprayed with 70% thiophanate-methyl 1000 times or 50% carbendazim wettable powder 800 times for the control of powdery mildew, leaf spot and other diseases; spraying 5% imidacloprid EC 2000-3000 times or 25% The deltamethrin 3000 times solution was used for the prevention and control of insect pests such as aphids; sprayed with 40% triclosan EC from 1000 to 1500 times or 15% of eucalyptus EC 2000 times to control spider mites.
Fifth, weeding and weeding. Weeds grow faster and should be removed in combination with cultivator to keep the soil loose and ventilate and the circulation of air between the rows, to avoid weeds from competing for nutrients and to reduce the occurrence of pests and diseases.
Six, fertilizer and water management.
Flower seedlings have a large demand for water, and should be watered in time when drought occurs. Surface irrigation can also be carried out, and the spraying of leaves can also be used to reduce the temperature. Watering should be used as soon as possible to prevent burning of roots. The current growth of flowers and seedlings is strong and fertilizer should be applied in a timely manner. For flowering flowers, appropriate phosphorus and potassium fertilizers should be applied. In dormant and semi-dormant flowers, fertilization should be stopped to prevent root rot.
Seven, pruning. In summer, pruning branches, weak branches, and branches of diseases and insects should be cut off; some flowering flowers should be cut off to reduce the loss of nutrients, and plastic cuts should be used to remove some leggy branches.
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