The harm of sugarcane drill beetle needs to be controlled carefully.

Sugarcane, (scientific name: Saccharum officinarum) sugarcane is a tall, solid perennial herb. The rhizome is stout and well developed. The culm is 3-5 (- 6) meters high. It is widely cultivated in southern tropical areas such as Taiwan, Fujian, Guangdong, Hainan, Guangxi, Sichuan, Yunnan and so on. Sugarcane is suitable for planting in places with fertile soil, plenty of sunshine and great temperature difference between winter and summer. Sugarcane is a temperate and tropical crop, is the raw material for the production of sucrose, and ethanol can be extracted as an energy substitute. Sugarcane is produced in more than 100 countries in the world, and the largest sugarcane producers are Brazil, India and China. Sugarcane is rich in sugar and water, as well as various vitamins, fats, proteins, organic acids, calcium, iron and other substances that are very beneficial to human metabolism, which are mainly used in sugar making. The epidermis is generally purple and green, and there are also red and brown, but it is relatively rare.

Sugarcane borer, known as sugarcane borer, is the most important pest that leads to the reduction of sugarcane yield, mainly caused by larvae eroding sugarcane seedlings and sugarcane. In the sugarcane seedling stage, it invades the growing point, resulting in withered seedlings, because of its harmful parts, it is not easy to spray pesticides, so as to avoid adverse effects. But in the face of heart-drilling insects, is there really no way to cure it?

1. Eliminate overwintering sugarcane borer and reduce insect source

When harvesting sugarcane, cut it low with a small hoe, remove the residual stems, withered seedlings and withered leaves in the sugarcane field in time, and burn them on the spot. Cut off the autumn and winter bamboo shoots before the emergence of adult sugarcane borer. In the areas where the white borer is damaged, after the beginning of the pressing season, the cane with withered shoots can be first chopped to the sugar factory to control the overwintering white borer. In the sugarcane field without persistent roots, plough and burn the sugarcane head or soak the sugarcane field for 3 days to eliminate the source of overwintering insects. In addition, selecting healthy sugarcane seedlings without borer damage as seedlings and soaking seeds with lime water can prevent sugarcane seed from spreading borer damage. Properly advance the planting date, or carry out winter planting with sufficient base fertilizer to make tillers grow early and develop quickly, reduce borer damage and form lack of plants. The implementation of rotation, such as sugarcane and rice, sweet potato or vegetable rotation, can reduce the damage of sugarcane borer.

two。 Cutting off withered shoots can significantly reduce the damage.

3. Timely treatment of withered seedlings after the occurrence of withered seedlings and pre-Eclosion of adults, first pull out the stem and foot mud of withered seedlings with a knife, and then cut obliquely near the mouth of the insect, stabbing the larvae to death.

4. Spray 1.8% avermectin borer special insecticide 500 times evenly, especially below the trigeminal port.

5. Biological control Trichogramma is a kind of egg parasite, which can parasitize on the eggs of yellow borer, Chilo suppressalis, stripe borer and other pests, so that it can not become larvae, while the hatched Trichogramma destroys the sugarcane borer in the egg stage.

6. The mechanism of sex attractant isotropy control is that a certain amount of sex attractant (biomimetic compound, in the form of hollow plastic tube or thread) is released in the sugarcane field, and the gas permeates the mating active layer space of the borer moth, interfering with the male moth, so that it can not distinguish the position of the female moth, thus interrupting the sexual information contact between the female and male moths, suspending the mating activities, and greatly reducing its reproduction and population density. It is a new technology and a new way to control borer.

In short, the above is some effective experience in the prevention and control of sugarcane heart disease. I hope it can help you.