Control of Cerococcus chinensis
The main results are as follows: (1) remove the insect source manually, scrape the insect body on the branch with a hard brush in winter and early spring in March next year, and collect and kill it. If there is snow, fog and steam freezing on the branches of the tree, and the ice edges are thick, they can directly hit the branches and shake down the ice, and the insects will fall with it.
(2) Protection and utilization of natural enemy resources: there are many natural enemies of this insect, and the predatory ladybird can prey on thousands of this insect in its lifetime, and the larvae of long shield golden wasp can parasitize under the belly of the insect and feed on scale eggs.
The larvae of the wasp can parasitize under the abdomen of the insect and feed on scale eggs.
(3) Chemical control: the effect of spraying is the best in the hatching period of young nymphs, and the type of medicine can be seen in "jujube pink scale". Generally speaking, the damage can be controlled again after the first use of the drug every 10 to 15 days.
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Nephrite Cui talking about carambola
Carambola is a favorite fruit in Lingnan. Su Dongpo wrote a poem in Hainan saying: "the carambola pours the white honey and collects five collections." Coincidentally, when Mr. Lu Xun was in Guangzhou, he strongly recommended to everyone: "among the flowers and fruits in Guangdong, my favorite food is carambola, which is slippery and crisp, sour and sweet. I often publicize the merits of carambola, and most of the people who eat it agree." As for carambola processed canned, cold fruit, candied fruit and so on are exported to the north and south, and are very popular. Carambola, also known as Wuyuanzi and Wulingzi, is native to the tropical regions of Nanyang. According to the "southern vegetation" in the Jin Dynasty
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Zhongai 33, a New dwarf Peach Variety
Zhongai 33 is a new extremely dwarf early maturing peach variety successfully cultivated by Zhengzhou Fruit Tree Research Institute of Chinese Academy of Agricultural Sciences. According to the cultivation observation in the High-tech Agricultural Park of Hebei Tiangong Industrial Company, the fruit of the 3-year-old high-yield tree is 50 cm ~ 60 cm high, the branch spread 60 cm × 80 cm, and the stem circumference 9.7 cm. The tree is strong and the crown is compact. Leaf blade 3.8 cm × 20.4 cm, dark green. The internodes are very short, the new shoots are stout, the flower is easy to form, the amount of pollen is large, the fruit setting rate is high, and the yield is high. Fruit in open field in mid-June
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