Chlorbenzuron is a benzoylurea type chitin synthesis inhibitor. It has the following functions and efficacy:
1. Mechanism of action:
By inhibiting the activity of insect cuticle chitin synthase and uridine diphosphate coenzyme, it suppresses chitin synthesis in insects. Chitin is an important component of insect cuticle. The lack of chitin will hinder the formation of new cuticle in larvae, causing the insects to be unable to undergo normal molting and eventually die due to failure to complete the normal growth and development process.
It affects the respiratory metabolism of eggs and the DNA and protein metabolism during the embryonic development process, causing the larvae inside the eggs to lack chitin and thus fail to hatch or die immediately after hatching.
2. Characteristics of action:
Mainly gastric toxicity: When pests consume food containing Chlorbenzuron, the pesticide takes effect within their bodies. Although it also has some contact killing effect, it has no systemic absorption property.
High selectivity: It has relatively high insecticidal activity against molting insects, especially lepidopteran insects, but has almost no harm to beneficial insects and bees of hymenoptera family as well as forest birds (though it has an impact on ladybeetles).
Long duration of action: The degradation rate of Chlorbenzuron is slow, it is resistant to rain erosion, and can maintain a long-lasting efficacy in the environment. Generally, the duration of action can reach 15 – 20 days.
3. Target pests:
It is highly effective against various lepidopteran pests, such as peach tree leafminer, tea black moth, tea eelworm, cabbage caterpillar, rape night moth, wheat stickworm, corn borer, American white moth, pine caterpillar, dancing moth, boat moth, and treetop moth.
Spraying a certain concentration of methomyl solution on the roots of onion and garlic vegetables can effectively kill soil grubs; it also has a good effect on controlling the larvae of flies in toilets and mosquitoes in stagnant water ponds.
4. Effectiveness: The drug effect becomes gradually apparent 3 to 5 days after application, and the peak of mortality occurs around 7 days.
When using Chlorbenzuron, it is necessary to choose the appropriate application timing (with the best effect during the larval stage), use the correct method and concentration, and avoid mixing with alkaline substances. In addition, the application of Chlorbenzuron also reflects its environmental advantages. As a biologically rational pesticide, Chlorbenzuron can control pest populations while having a relatively small negative impact on the environment. It does not affect the structure of soil microorganisms, does not accumulate in water bodies, and has extremely low toxicity to non-target organisms such as fish and aquatic invertebrates, which is conducive to maintaining ecological balance. Therefore, in today’s promotion of green agriculture and sustainable development concepts, Chlorbenzuron has become an important choice for pest control in many regions.
To further enhance the application effect of Chlorbenzuron, scientists are constantly exploring its synergistic effects with other pesticides or biological control methods. For instance, combining Chlorbenzuron with sex pheromones can interfere with the mating behavior of pests, thereby more effectively reducing the reproduction rate of pests; or combining it with biological control agents such as bacteria and fungi to form a multi-level control mechanism, improving the overall control effect.
At the same time, with the advancement of technology, the emergence of intelligent spraying systems has also made it possible for the precise application of methomyl. Through modern agricultural equipment such as drones and intelligent sprayers, the application area, time and dosage of spraying can be precisely controlled, reducing pesticide waste, improving the control efficiency, and further ensuring the safety of agricultural products and environmental quality.
In conclusion, Chlorbenzuron, as an efficient, low-toxicity and environmentally friendly benzoylurea chitin synthesis inhibitor, plays an important role in agricultural pest control. With the deepening of research and technological innovation, its application prospects will be even broader, contributing to the sustainable development of agriculture.
Post time: Mar-26-2026