Spring Control Techniques of Mulberry Pests and Diseases

Generally in the autumn of last year, control was not timely, and when the larvae had a high winter base, white stripe pests should be applied. In the end of March, 10 days before the decoction of saccharomyces, 50% methamidophos emulsion was used to control 1500 times. The interval between safety was 20 days. The wintering mulberry mulberry worm and mulberry caterpillar were both treated. If the mulberry caterpillar wintering date coincides with the mulberry winter bud germination period, it can also be used in the puerperium period with 60% double-effect phosphorus emulsion 1500 times, safety interval of 6 to 7 days. The pests of the green locust locust in the Maysang area are controlled by 50% phoxim emulsion 1500 times, or 40% dimethoate emulsion 1000 times, or 60% double-effect phosphorus emulsion 1500 times during winter bud development to Yankou period. The period is divided into 3 days, 3 days and 6 to 7 days. In some areas, mulberry mosquitoes can be picked in the 5th instar period of silkworms. The leafworm stage can be captured artificially or treated with a short-acting agent such as 80% dichlorvos emulsion 1000 times. In areas where mulberry branches occur, it is advisable to spray mulberry flowers and branches with a 70% thiophanate-methyl 1000-fold solution during the mulberry flowering season. In mid-April to early May, 10 to 20% of leaves with 2 or 3 small brown patches of mulberry brown spot are treated with 50% carbendazim (plus 0.05% soap powder) or 70% thiophanate-methyl 1500 times Spray, safety interval is 1 day. In addition, in early April or late May, except that the young leaves of mulberry rust disease were found except for timely picking, the shoots and leaves were treated with 25% triadimefon WP at 1000 times for the early stage of the disease.

According to the site of Fungal Infection,it can be divided into superficial fungal infection and deep fungal infection, superficial fungal infection is caused by ringworm infection of the skin, hair, fingers, toe fingers. The incidence rate is high with less harmful. Deep fungal infection is caused by Candida and cryptococcal invasion of internal organs and deep tissue, the incidence is low with big harmful. Classified based on mechanism action classification can be divided into (1) Antifungal agents for sterol synthesis in fungal cell membranes (2) Antifungal agents for fungal cell wall synthesis (3) Antifungal agents acting on nucleic acid synthesis, The Antifungal drugs easily affect the white blood cells and liver function, if in long-term use,it may caused a transient increase in GPT or leukopenia, withdrawal is normal.

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