Benzoylurea Pest Control for Dormant-Season Vine Mealybugs
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Solution Overview
Problem
Conventional control methods for vine mealybug infestations in grapevines are inefficient due to the pests' concealed locations and high reproductive rates, leading to significant damage and reduced crop yield, with chemical treatments often requiring multiple applications and showing variable efficacy.
Innovation Solution
The application of a benzoylurea insecticide, such as diflubenzuron, at a specific timing (delayed dormant time) effectively controls vine mealybugs by inhibiting chitin biosynthesis, reducing pest populations, and enhancing crop health with improved residual control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional synthetic insecticides are applied repeatedly throughout the grape-growing season, then pest control coverage is attempted, but efficacy is variable and often unsatisfactory due to concealed pest locations
Solution Approach 1:
The patent applies insecticides at delayed dormant time, which is a preliminary action before the pest becomes active and concealed during the growing season. This timing allows the insecticide to be present and effective when pests emerge, reducing the need for multiple follow-up applications during the season when pests are hard to reach.
2Reliability
If multiple insecticide applications are made to control high reproductive rates, then pest population suppression is attempted, but treatment cost and complexity increase
Solution Approach 1:
By applying the insecticide at delayed dormant time before the pest population builds up, the treatment prevents population explosions rather than trying to suppress them after they occur. This preliminary action reduces the need for multiple corrective treatments later in the season.
3Reliability
If insecticides are applied to reach concealed pests under bark and below soil surface, then pest coverage is attempted, but phytotoxicity to the plant increases
Solution Approach 1:
The delayed dormant timing allows the insecticide to be applied when the plant is still relatively dormant and less sensitive to chemical damage. The insecticide is positioned to be effective when pests become active, while the plant has recovered some sensitivity, thereby reducing phytotoxicity while maintaining pest coverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Diflubenzuron achieves significant reduction in vine mealybug infestation, improving crop yield and health by minimizing pest populations and disease incidence with reduced phytotoxicity.
Implementation Method 1
The application of a benzoylurea insecticide, such as diflubenzuron, at a specific timing (delayed dormant time) effectively controls vine mealybugs by inhibiting chitin biosynthesis
Data Source
AI summary
The present disclosure relates to a method for controlling pests. More particularly, the present disclosure relates to a method for controlling pests by application of a benzoylurea insecticide.