Control of jujube mealybug
(1) artificial physical control. Scraping bark: in winter and early spring, scrape off the old bark at the trunk, branches and forks and burn them, spray the whole tree with 3-5 Bomeo stone-sulfur mixture, or coat the main branches with a sticky insect ring about 1-2 cm wide, in order to prevent the upper tree and concentrated overwintering branches from transferring to non-concentrated overwintering branches, and stick to some pests.
(2) chemical control. The time of medication should be in the peak period of newly hatched nymphs, usually from the end of May to the beginning of June, the first ten days of July, the middle and the first ten days of September. The selected medicaments are as follows: 1500-2000 times of 25% paracetamol wettable powder (2 days ahead of time), 200 times of neem crude oil emulsion, 80% dichlorvos EC 1000 times 1500 times, 30% acephate EC 500 times, 25% quinathion EC 1000 times 1500 times, in order to enhance the contact effect. Can be mixed with pyrethroids, such as 2.5% kungfu EC 1500 2000 times or 10% Uranus 2000 4000 times, etc.
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Extra-early crisp jujube and its cultivation techniques
"extra early crisp honey king jujube" is a rare variety of early maturing fresh jujube in China. The tree potential of the variety is medium, the angle opens naturally, the branches do not grow too long, the fruit is cylindrical, the fruit face is white in the crisp ripening stage, the fruit face is bright red in the full ripening stage, the single fruit weighs about 30 grams, the fruit size is uniform, the kernel is small and the meat is thick, and the edible rate is about 98%. It also has the following characteristics: 1. The extra-early maturity period is in late July, which is about one month earlier than that of Lizao jujube. It is an extra-early fresh jujube variety. 2. The fruit is very large
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Peach variety: Yuhua dew
Variety registration number: GS14001-1992. Variety source: Baihua Water Honey X Shanghai Water Honey (early), bred in 1975. Characteristics: the tree potential is medium and strong, the tree posture is developed, the branches are evenly distributed, there are many compound flower buds, the fruit performance is good, the fruit rate is about 45%, and the yield is good. The fruit ripens early, generally maturing in the middle of June, and the fruit growth period is 75-78 days. The fruit is oblong, with an average fruit weight of about 125 grams, with a maximum of 200 grams. The pericarp is milky yellow, with redness at the top and pulp milk.
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