Method for preventing and treating pineapple dysmicoccus neobrevipes and pineapple blight by applying medical fertilizers through rhizosphere drip irrigation

Abstract

The invention discloses a method for preventing and treating pineapple dysmicoccus neobrevipes and pineapple blight by applying medical fertilizers through rhizosphere drip irrigation. The method is characterized in that plants are subjected to the rhizosphere drip irrigation of a mixed nutrient solution after two months of pineapple planting, the irrigation number is 5-8 times during the whole growth period, and the irrigation amount is 10-20 m3 / mu each time; and the above mixed nutrient solution consists of 10-20 parts by weight of a plant leaching solution and 80-90 parts by weight of a nutrient solution. The triple effects of insecticide, disease prevention and strong seedling are achieved by the mixed drip irrigation applying. Different from a traditional applying method, the method carries out the rhizosphere drip irrigation applying during a pineapple growth period, and technical effects of effectively preventing and treating pineapple dysmicoccus neobrevipes and controlling pineapple blight are achieved by simultaneous drip irrigation applying of medical fertilizers.

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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