Maintenance and management technology of pomelo how to control diseases and insect pests

The efficacy and role of pomelo is very many, and pomelo itself also has a relatively high ornamental value, so learn to cultivate pomelo, and then plant it in your own courtyard, will be a good choice.

First, the efficacy and function of pomelo

1. The taste of pomelo is a little bitter in sweetness, the bitter taste of good medicine is good for the disease, and the outer shell of pomelo can cure cold.

two。 Hu pomelo has the effect of nourishing beauty and longevity. Its pulp contains 16 kinds of amino acids and a large amount of vitamin C, B and trace elements, which are suitable for the elderly. It is very good to give gifts to parents.

3. Pomelo can prevent the occurrence of bowel and stomach cancer. Fresh pomelo meat is an ideal food for patients with diabetes because it contains ingredients similar to insulin.

4. Pomelo can reduce blood sugar, but the effect is not very big, only suitable for less to eat, the doctor also pointed out that pomelo has the role of adjuvant treatment, but to review regularly.

II. Maintenance and management technology of pomelo

Pick at the right time. Pomelo storage fruit is generally harvested when 90% of the fruit around the crown changes color, generally before and after the Beginning of Winter, bagged pomelo must be picked after October 30, must not be picked early, so as not to affect the quality. Two-cut method is used when picking, the main harvest quality, do not harvest in frost, dew, Rain Water is not dry and foggy, harvest 2-3 days after heavy wind and rain. The harvested fruits were treated with chemicals within 24 hours. After the fruit was soaked in the solution, the fruit was air-dried and fully sweated, and the single fruit was packed with thin film and stored in storage.

Protect flowers and fruits. Huaxie 3/4 when spraying 50ppm, that is, a gram of 920 (gibberellin) to water 40 jin plus 0.3% potassium dihydrogen phosphate, 0.2% borax (Sodium boron) plus 0.5% urea, and Tuibite, trichlorfon each 800 times spraying leaves, the masses said "six in one", the effect is very good. However, this drug can only be sprayed once a year, and more spraying will cause the pericarp to thicken and reduce the fruit quality.

Anti-freezing and warmth: apply Zulan fertilizer, weeds and other organic fertilizer. In early December, the root neck carries 2 ~ 3 piculs of soil, the soil height is more than 25 meters or covered with heat preservation under the canopy, and the trunk is coated with white. Before freezing the soil, spray the crown with 0.2% urea or plant ash extract to improve the cold resistance of the leaves, wipe off the tender late autumn, apply thin human feces or irrigation to keep warm, shake off the snow on the tree in time when it snows, in case the snow breaks the branches, and do not shake the snow after the snow freezes, so as not to hurt the branches.

III. Pest control of pomelo

1. Insect pests: the main pests harmful to pomelo are mites, scales, orange aphids, leaf moths.

Control methods: red and yellow spiders and rust wall lice, etc.: avermectin can be used to control. Leaf miner can use B.T or pyrethroid pesticides. Scale can be used to kill scale, Pushuiling, the effect is the best.

two。 Diseases: the diseases harmful to pomelo are canker and anthrax.

① canker disease: canker disease is rare in our city, the main symptoms are on the trunk and leaves, copper preparation medicine is used to prevent and cure the ulcer, and the imported seedlings should be strictly quarantined.

② anthracnose: mainly occurs in the case of Rain Water, there are concentric spots on the leaves, which can be prevented and treated with agricultural kanamycin, Bordeaux solution, topazine, etc. (use in accordance with the drug instructions).

In addition, pomelo is also easy to be infected with bituminous coal disease and yellow flower disease, and is attacked by pests such as butterflies, longicorn beetles, flower bud maggots, fruit moths and so on. in order to ensure its healthy growth, it must be prevented and protected as soon as possible.