The unusually high temperatures during winter and spring have significantly worsened the occurrence of garlic pests and diseases, creating favorable conditions for the survival and damage of garlic sprouts in the following season. As a result, it is strongly recommended that garlic farmers intensify their efforts in early prevention and control measures to minimize losses.
Symptoms of infestation include larvae feeding on garlic bulbs, causing them to rot and leading to yellowing, wilting, or even death of the above-ground leaves. When pulling out affected plants, maggots can be clearly seen inside. The outer skin of the damaged garlic turns yellow-brown and soft, while the cloves are often exposed, broken, or filled with a foul odor. Infected bulbs are easily pulled out and may come off entirely.
In terms of occurrence patterns, garlic pests can cause damage even before winter, with larvae overwintering and emerging as adults in March of the next year. Female flies lay eggs in soil cracks, clumps around garlic roots, or within leaf sheaths. These eggs hatch into larvae within 5 to 7 days, which then feed on the garlic. The period of garlic sprouting is the peak time for egg hatching, making it a critical window for intervention.
To manage this issue effectively, farmers should implement the following strategies based on current weather conditions and the growth stage of garlic:
1. **Manual trapping of adult flies**: A mixture of brown sugar, vinegar, and water in a 1:1:2.5 ratio can be used as an attractant. Adding sawdust and trichlorfon to the trap helps capture the insects. This method can effectively reduce adult populations before they lay eggs, offering a multiplier effect on pest control.
2. **Killing adult flies and eggs**: During the adult laying period, apply a 1.8% chitin solution diluted 1000 times. Spray the area every 7 days for two applications. This helps reduce egg-laying activity and minimizes subsequent damage.
3. **Fertilizer application**: Apply nitrogen and sulfur-based fertilizers during watering. These nutrients not only support plant health but also act as a deterrent against garlic sprout infestations.
4. **Chemical control**: If infected plants are detected, treat the field with a combination of phoxim and chlorpheniramine or chlorpyrifos. Apply the treatment before irrigation or rain to ensure maximum effectiveness. In severe cases, reapply every 10 to 15 days for continued control.
By adopting these integrated measures, garlic farmers can better protect their crops and reduce economic losses caused by garlic sprout infestations. Early detection and timely action are key to successful pest management.
ultrasound equipment,Doppler ultrasound device,Doppler ultrasound scanner
Sichuan Krayson Electronic Technology Co., Ltd , https://www.sckrayson.com