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"Five lure" prevention and cure method for vegetable pests
**The "Five Lure" Method for Controlling Vegetable Pests**
*Source: Jiangsu Provincial Agriculture and Forestry Department*
*Category: Technical Article*
*Update Time: October 28, 2008, 14:10:04*
*Read 53 times*
Vegetable pests have unique behavioral traits that can be exploited for effective control. By using five specific methods—sex pheromones, colored traps, light attraction, sweet and sour liquids, and poplar branches—farmers can significantly reduce pest populations without the need for excessive chemical pesticides.
### Understanding the Habits of Vegetable Pests
1. **Color Preference**:
Many pests are attracted to certain colors. For example, male beet armyworms and Spodoptera litura are strongly drawn to the pheromones released by females. In addition, pests like whiteflies, aphids, and Liriomyza sativae show a strong preference for yellow, while palm bugs are more attracted to blue.
2. **Light Attraction**:
Some pests, such as the cotton bollworm, diamondback moth, and fruit flies, are highly phototactic. They are naturally drawn to light sources at night, often gathering around lights for “entertainment.†The cotton bollworm is also known to hide in poplar branches during the day.
3. **Feeding Habits**:
- Some pests, like tobacco cutworms, are attracted to molasses.
- Others, such as the Spodoptera litura and fruit flies, prefer sweet and sour liquids.
- Certain species, including cutworms and root maggots, feed on organic matter like fermented vegetables, cow dung, and bean cakes.
- Leaf-eating pests, such as aphids and leafhoppers, target high-nitrogen vegetable leaves.
### Applying the "Five Lure" Technology
1. **Sex Pheromone Trapping**:
This method uses synthetic chemicals that mimic natural sex pheromones to attract and trap male pests. It effectively disrupts mating, reducing reproduction. Common products include sex attractants and sex control agents, with good results seen in controlling pests like the diamondback moth and Spodoptera litura.
2. **Color Trap Technique**:
Yellow plates are widely used to trap pests like whiteflies, aphids, and Liriomyza sativae. Each acre should have about 10 yellow boards, and oil should be applied every 7–10 days to maintain adhesion. Orange plates are effective against orange-colored pests, while blue objects can be used to trap palm flies.
3. **Light Traps**:
Installing 50 insecticidal lamps per acre helps control various pests, including the diamondback moth, cotton bollworm, and beet armyworm. These are especially effective during peak infestation periods.
4. **Sweet and Sour Liquid Traps**:
Placing sweet and sour liquid traps in each acre can attract and capture pests like fruit flies and other species that are drawn to such substances.
5. **Poplar Branch Traps**:
In areas where poplars are available, placing 10 branches per mu (approximately 667 square meters) of vegetable fields can effectively trap cotton bollworms and similar pests.
By combining these five methods, farmers can implement an environmentally friendly and sustainable approach to pest management, reducing reliance on harmful chemicals while maintaining crop health.
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