The harmfulness of Dendrolimus punctatus and its control
It mainly damages leaves, and when it is serious, the whole tree leaves are eaten up.
1)Cut off the branches with eggs and eliminate them in a centralized way;
2)Spray 800 times of Bacillus thuringiensis wettable powder during larva incubation period.
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Red eggplant pear
American variety, budding of eggplant pear. It is the only precocious pear variety with the most beautiful appearance and comprehensive purplish red. It has been introduced and planted in Jiangsu, Liaoning, Hebei, Henan and many other provinces (cities and autonomous regions), such as Yunnan, Beijing, Shanxi, Shandong, Sichuan, Hubei, Gansu, Shaanxi, Inner Mongolia, Anhui, Guangdong and so on. The fruit is large, with an average weight of 131 grams per fruit. The fruit is in the shape of a thin-necked gourd, the pericarp is all purplish red, the fruit surface is smooth and waxy, the appearance is quite beautiful, and the fruit spot is small but not obvious. Fruit pedicel
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Key points of cultivation and Management techniques of late-ripening Peach
1. The environmental conditions of late ripening peach and winter peach are similar to those of common peach. Yunnan can be planted in areas with an altitude of 1800-2100 meters, an average temperature of 12 ℃-15 ℃, an annual accumulated temperature of 4000 ℃-4500 ℃ for 10 ℃, annual rainfall of 800-1000 mm, annual sunshine of about 2000 hours, good irrigation and drainage conditions, convenient transportation, gentle terrain, deep soil, sandy loam or light gravel loam, loose and fertile soil, more organic matter and ph value of 5-6. 5. II.
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