According to statistics from the Plant Protection Department, up to now, more than 300 species of pests are resistant to plant protection drugs (PPE) through many different mechanisms. In particular, chemical resistance is affected by factors such as age, season, weather, frequency of chemical exposure, population density, toxicity and toxicity of chemicals. Pest resistance is the ability to withstand a larger amount of pesticide than the initial amount used, due to frequent and repeated use of the pesticide. Notably, this ability can be passed on to the next generation, even when the individual of the next generation is born, a form of natural evolution. Pest resistance has a great impact on agricultural production and cultivation, forcing farmers to use more and more pesticides, which is both costly, pollutes the environment and affects the health of users. The increasingly diverse types of pesticide-resistant pests also make it very difficult for farmers to control pests in the fields, causing great damage to crops.

Farmers worry about pesticide-resistant leaf rollers

Especially among the pesticide-resistant pests, for rice farmers in the Mekong Delta in particular and the whole country in general, leaf rollers are the most common pests and the main concern of farmers during this period.

In the Mekong Delta, farmers currently spray pesticides about 6-8 times per rice crop and this frequency may be even more dense when the situation of pesticide-resistant pests is increasing.

Leaf rollers are a type of rice pest that causes extremely serious consequences on rice plants, they cause damage right from when the rice plants first tiller until the rice ripens. They often reproduce and break out strongly in cool weather with high humidity. Leaf rollers have a life cycle of about 30-35 days, usually occurring 6-7 times per year and causing the most damage to rice during the crop season.

The mechanism of damage is quite simple, the worms bite the leaf parenchyma, leaving a white cuticle along the leaf veins. Then, the worms roll the rice leaves into tubes and live inside. At this time, rice is severely damaged from the flowering stage onwards, which can affect yield because leaf rollers reduce photosynthesis and increase the rate of empty grains.

What is the solution when leaf rollers gradually become resistant to drugs?

Over the years, the insecticide resistance of pests has accumulated and the resistance genes have been passed down through many generations. In addition to the main reason being the failure to apply proper insecticide resistance management solutions such as spraying early and ensuring dosage or rotating insecticide active ingredients to diversify the mechanism of action on leaf rollers, the most important factor is the lack of investment in new technology to create a strong mechanism of action on leaf rollers in new forms, creating gaps for the natural evolution of this leading pest in rice fields.

If the situation of insecticide resistance continues to persist and there are no remedial measures, it will lead to an increasing trend of insecticide resistance and cause more severe damage to farmers' productivity. It is time for farmers to have a new choice with a new breakthrough mechanism of action to maximize pest control effectiveness and optimize costs.

MDmetometa 400SC insecticide - Kills pests so well!

Pests that are resistant to pesticides are difficult to manage, but if farmers choose the right solution, it is entirely possible.

Through testing on many rice fields with different crop seasons in the Mekong Delta, MDmetometa 400SC is considered by many farmers to be an effective pest control product, including drug-resistant pests.

MDmetometa 400SC with golden ratio mixing formula, maximum effectiveness in killing pests. Thanks to the mechanism of nerve action and promoting the molting process, MDmetometa 400SC makes pests lose their appetite and die. Maximum effectiveness after 3 days, long lasting effect.

Please contact Manh Dan Joint Stock Company immediately for advice and answers to questions about farming in general and pest control in particular. Sincerely thank you and wish you successful farming.