Kang's pink scale in pear orchard
The main results are as follows: (1) the occurrence regularity of Kang's pink scale belongs to Homoptera, Coccidae. Also known as pear pink scale, plum powder scale, mulberry powder scale. Generally, there are three generations a year, overwintering with eggs and nymphs in rough bark cracks, bagged diseases and pests scattered in the orchard, weeds around the rhizosphere, soil clods, fallen leaves and other hidden places. Use adults and nymphs to suck the juice of buds, shoots and fruits. Before bagging, it is mainly harmful to buds and shoots, causing leaves to twist, swell, wrinkle and wither. After bagging, get into the bag to harm the fruit, live in groups in the calyx depression and stem depression, secrete white wax powder, pollute the fruit, absorb juice, and make the fruit lose its commercial value and edible value. (2) ① garden cleaning: carefully scrape off the rough old warped skin and clean up the old paper bags, diseases, insect pests and fruits, residual leaves and dry saw. Before ② germination: spray Baume 5 degrees stone sulfur mixture to eliminate overwintering eggs and insects. Before ③ bagging (early May): it was the peak hatching period of the first generation of eggs, and the larvae gathered together and had not spread. Spray 1500 times 40% speed killing EC. ④ should pay attention to the spray carefully and evenly when spraying, especially the middle and lower part of the crown and the inner chamber.
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June crisp pear
1. Variety source: June crisp pear is a very early-maturing and excellent new variety selected from the early-maturing variety Zaocu pear bud variety by the research group of "New Pear Variety breeding" in the Institute of Horticulture, College of Horticulture, Northwest University of Agriculture and Forestry. This variety is suitable for the Loess Plateau, Northeast Plain, Yellow River, Yangtze River Basin and other areas. Second, the variety characteristic this variety grows vigorously, the tree posture is erect, the annual branch is erect, stout, reddish brown, the leaf color is green, the leaf edge needle awn-like compound sawtooth is early crisp and obvious. This variety has the advantages of early fruiting, high and stable yield and high quality Qiaohua seedlings.
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Environmental Management of Apricot cultivation in protected area
The main results are as follows: 1. for the control of temperature and humidity, three thermometers are hung on the east and west sides of the shed and in the middle of the shed, which are about 1.5m above the ground. The general thermometers and the highest and lowest thermometers can be placed respectively. The temperature is recorded at 8 o'clock, 12:00, 14:00 and 20:00 every day during the budding period, and observed every 1-2 hours during flowering. The air humidity in the shed can be measured by a dry-wet bulb hygrometer. The suitable temperature and humidity of each phenological period are as follows: the regulation of temperature is mainly achieved by opening and closing vents. Before and during flowering, if the temperature does not reach
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