Method for adopting rhizosphere trickle irrigation for pesticide and fertilizer application to prevent and treat dysmicoccus neobrevipes (Beardsley) and mealybug wilt of pineapples

Abstract

The invention discloses a method for adopting rhizosphere trickle irrigation for pesticide and fertilizer application to prevent and treat dysmicoccus neobrevipes (Beardsley) and mealybug wilt of pineapples. Two months after field planting of pineapples, rhizosphere of plants is subjected to trickle irrigation with a mixed nutrient solution, irrigation is conducted 5-8 times in the whole growth period, and the irrigation amount is 10-20 m<3>/mu, wherein the mixed nutrient solution is prepared by mixing, by weight, 10-20 parts of plant leach liquor and 80-90 parts of nutrient liquid. By means of the method, through the adoption of mixed trickle irrigation application, the triple effects of pest killing, disease resistance and seedling strengthening are achieved; the method is distinct froma traditional application method, trickle irrigation application is conducted at the rhizosphere in the growth period of the pineapples, and through trickle irrigation, synchronization of pesticide and fertilizer application is achieved, the technical effect of effectively preventing and treating dysmicoccus neobrevipes (Beardsley) and mealybug wilt of pineapples is achieved.

Description

technical field [0001] The invention relates to a pineapple planting disease prevention method, in particular to a rhizosphere drip irrigation method for preventing and treating pineapple mealybug and pineapple wilt. Background technique [0002] Pineapple wilt (Mealybug wilt of pineapple) is one of the most serious diseases of pineapple, which can cause about 30% to 50% yield reduction. As a plant virus disease, the occurrence of pineapple wilt is closely related to the damage of pineapple mealybug. Virus-infected pineapple plants usually do not show symptoms when they are not damaged by mealybugs. After the pineapple wilt disease is eliminated in the early stage of the disease, the diseased plants can gradually recover after scientific water and fertilizer management. In the case that pineapple plants generally carry wilt disease virus, the control of pineapple mealybug is the simplest and most effective method to control pineapple wilt disease. This method has strong ope...

AI Technical Summary

Problems solved by technology

[0003] Dysmicoccus neobrevipes (Beardsley) are mainly harmful to pineapples in my country. Pineapple mealybugs often gather in the roots and leaf axils. At present, my country’s control of pineapple mealybugs mainly uses chemical pesticides in the field or spraying carbofuran, etc. before planting. Highly toxic pesticides and base fertilizers are applied together in furrows, the former is less effective, and the latter is likely to cause environmental pollution and food safety problems

Therefore, traditional chemical control is not ideal for its control effect, and frequent application of chemical pesticides is likely to cause pesticide residues and environmental pollution

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