Summary of Experience in Pest and Disease Control for Greenhouse Peach Trees

The main diseases of greenhouse peach trees are scab, shot hole disease, and gummosis; the main pests are aphids, spider mites, and leaf miners. For the control of pests and diseases in greenhouse peach trees, prevention should be the priority, with control during the dormant season as the foundation, to reduce sources of infection. Before and after flowering are the key periods for control, and vigilance must not be relaxed.

Dormant season  After winter pruning, thoroughly clean the orchard, and gather dead branches and fallen leaves to burn or bury deep; before raising the temperature, spray 150 times 9281 plus 1000 times Nongchongbi; about one week after raising the temperature (scale cracking stage), spray 65% sodium pentachlorophenate at 250 times or 3-5 degrees Beaume lime sulfur mixture.    

Growing season  About one week before flowering (bell flower stage), spray 1000 times captan plus 2000 times fenpropathrin or 2000 times Yibianjing; if aphids are severe during the flowering period, use aphid-killing smoke agent to fumigate the greenhouse, and the smoke should generally not remain in the greenhouse for more than 6 hours; one week after flowering, spray the whole orchard with 1000 times chlorothalonil or 1000 times thiophanate-methyl plus 4000 times abamectin; after fruit setting, at intervals of 2-3 weeks, alternately spray 50% carbendazim 500 times, 70% thiophanate-methyl 1000 times, and 72% captan 1000 times. To achieve the purpose of controlling both pests and diseases, insecticides and acaricides can be added when spraying fungicides. When leaf miners occur after fruit harvest, 1500 times chlorbenzuron No. 3 can be added, and at the same time, 1:3.5:240 zinc sulfate lime solution can also be used alternately, which can effectively control various pests and diseases.