Composition for preventing phytophthora rot of Huangguan pears and application method of composition

Abstract

The invention belongs to the field of plant disease control and particularly discloses composition for preventing phytophthora rot of Huangguan pears and an application method of the composition. The composition is prepared from the raw materials in parts by weight as follows: 22-26 parts of camphor tree leaves, 8-11 parts of pinkflower ecdysanthera roots and leaves, 8-11 parts of hodgsonia macrocarpa roots and 1-2 parts of pepper. The application method comprises steps as follows: water in a volume being 8 times that of the camphor tree leaves, the pinkflower ecdysanthera roots and leaves, the hodgsonia macrocarpa roots and the pepper are added, the mixture is boiled by intense fire and then decocted by slow fire for 45 min, and a pesticide liquid I and a pesticide dreg I are obtained; the pesticide liquid I is used for spraying leaves, branches, trunks and fruits of Huangguan pear trees and the soil surface once a day for 7 days; the pesticide dreg I is powdered, and pesticide powder I is obtained; the pesticide powder I is mixed into organic farmyard manure for the Huangguan pear trees, the pesticide powder I and the organic farmyard manure are in a volume ratio of 1:9; the pesticide powder I and the organic farmyard manure are uniformly fixed and then applied to soil. With the application of the composition with the method, the rate of the phytophthora rot of the Huangguan pears can be reduced, and the yield of the Huangguan pears is increased.

Description

technical field [0001] The invention relates to the field of plant disease control, in particular to a composition for preventing crown pear blight rot. Background technique [0002] Crown pear, oval fruit, yellow peel, smooth fruit surface, no rust spots; small fruit heart, white pulp, fine texture, few stone cells and residues, crisp and juicy, fruit shape is round, flavor is sweet and sour; contains a certain amount Protein, fat, carotene, vitamin B1, vitamin B2, malic acid, etc., these are all essential substances for the human body. Pear is sweet and cold in nature and has the effect of clearing the heart and moistening the lungs. It is effective for dry throat, itching, hoarseness, and thick phlegm in patients with tuberculosis, bronchitis and upper respiratory tract infection. The effect of yin and heat, and can promote appetite, help digestion, as well as diuretic laxative and antipyretic effects, can be used to replenish water and nutrition when high fever. [000...

AI Technical Summary

Problems solved by technology

[0006] Although the above methods have a certain effect on the prevention and treatment of pear blight rot, there are still about 10% of diseased fruits suffering from blight rot every year in the orchard.