Kang's pink scale in bagged pear orchard
One of the main bag pests. Calyx depressions and stem depressions suffered the most. The injured area produces purplish red halo spots, stops growing, forms abnormal fruit, and when serious, the fruit surface is cracked and withered. The insect usually has three generations a year, overwintering mainly as eggs or 1-year-old 2-year-old nymphs on branches and fruits, and a few fertilized females. When pear trees germinate in the next spring, the eggs hatch into nymphs. The activity began in April of the following year, the first generation was propagated from May to June, the second generation was propagated from July to August, and the third generation was propagated from September to November. There are 40% omethoate emulsion, 80% dichlorvos emulsion and so on.
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Longyuan pear
Longyuanyang pear is a new pear variety bred by artificial sexual hybridization by Heilongjiang Academy of Agricultural Sciences in 1979. The variety has the advantages of cold resistance, good quality, beautiful appearance and early fruit. it was approved and named by Heilongjiang crop Variety approval Committee in February 2000. More than 200,000 plants have been planted in Heilongjiang, Jilin, Inner Mongolia, northern Liaoning and other places. First, comprehensive characteristics, Longyuanyang pear fruit gourd-shaped, the average single fruit weight 120 grams, the maximum single fruit weight 350 grams. The pericarp is light yellow, red on the sunny side, and in the pericarp.
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Cultivation techniques of Tea Pear
Collect seeds. When the fruit of tea pear ripens from late October to early November, the berrylike capsule changes from yellowish green to yellowish brown, the upper part is slightly cracked, the aril turns red and the seed kernel is full, it is collected in time. After the fruit is harvested, put it in the ventilated room, air it for 2-3 days, ripen it after it is finished, take it to the outdoor cement floor, trample on the fruit shell, take out the seeds, soak the seeds in clean water for 24 hours, rub off the red aril, float away the empty seeds, fish out and air for thousands of days, sow with picking or moistening the sand for storage, and pay attention to the sand not to be too wet in order to avoid rotten seeds.
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