Can chili water kill pests?
With the rise of organic planting today, more and more gardeners are beginning to explore natural pest control solutions. Chili, a common seasoning, is becoming a new favorite of balcony gardeners because of its unique刺激性 traits. This article will delve into the scientific principles and practical techniques of chili pest control.
The scientific basis of chili pest control
Analysis of biological repellent mechanism
Capsaicin is the core active ingredient in chili, and this alkaloid can stimulate the olfactory receptors of pests. Experiments have shown that when the capsaicin concentration reaches 0.01%, it can effectively repel aphid populations. The antennae of small black flies are particularly sensitive to chili volatiles, and they will experience disorientation after contact.
Guide to making an efficient insect repellent
Criteria for raw material selection
Varieties such as the devil pepper and sky-pointing pepper, which have a pungency level over 50,000 SHU, are the preferred choice, as their capsaicin content is 20 times that of ordinary bell peppers. Fresh red chili peppers contain 30% more volatile substances than dried chili peppers and are recommended for priority use.
Advanced formula optimization
Safety guidelines for use
Always perform a concentration test before use: spray a small area at the base of the plant, and observe for any adverse reactions after 24 hours before using it extensively. Avoid applying during the strong sunlight hours of noon to prevent leaf burns.
Field tests have shown that properly formulated chili pest repellent can achieve a control effect of up to 78% on aphids, and the duration of the effect can last for 5-7 days. It is recommended to combine with physical pest control methods to establish a multi-dimensional protection system. It is worth noting that this method has limited effect on Lepidopteran larvae and needs to be combined with other biological control measures.