| 【Objective】The study was conducted to comprehensively under the main insect pests and diseases and clarify control phenology of two-cropping grapes under facility culture in Guangdong.【Method】Interviews and routine surveys were carried out in 2016-2019. According to the principle of ‘as early and thoroughly as possible’, the key control phenology period should be determined according to the dynamics of the occurrence of main diseases and pest insects, corresponding grape phenology periods and prevention and control practices.【Result】Under the facility culture, powdery mildew was the most serious disease for two-cropping grapes in Guangdong, followed by canker disease, downy mildew, spikestalk brown spot, gray mold, sunscald, air burn, mycoplasmnoid. Thrips were the most serious pests, and the main species were Scirtothrips dorsalis Hood, Thrips tabaci Lindeman, Thrips palmi Karny, followed by Tetranychus urticae Koch, Spodoptera litura（Fabricius）, Adoretus sinicus Burmeister, and Colomerus vitis（Pagenstecher）. The main pests and diseases were quite different from those under open field cultivation. The control phenology focused on the dormancy period, the early flowering period, the young fruit period, the fruit expansion period, the fruit color change period, and the fruit maturity period.【Conclusion】The main insect pests and diseases and control phenology of two-cropping grapes under facility culture were different from those under open cultivation. It had the characteristics of overlapping occurrence, longer damage period, two or more peak periods of multiple insect pests and diseases, and the same kind of insect pests and diseases were more likely to break out. In regard to two-cropping grapes under facility culture, the main insect pests and diseases should be controlled during the critical period, focusing on clearing the orchard during the dormant period, eliminating the source of disease and insects, and carrying out targeted pest control in the key periods such as the flowering and fruiting periods. |
