In the Chongzuo sugar cane planting area in Guangxi, sugarcane drill heartworm is the sugarcane yellow borer, stripe borer and two-point borer collectively, they are important pests on sugarcane is also one of the biggest headache problems of cane farmers, if the sugarcane drill heartworm control is not light, causing sugarcane production to decrease weight, resulting in sugarcane harvest, this is not alarmist, to understand the harm of sugarcane drill heartworm is clear.
<h1 class="pgc-h-arrow-right" > what harm does sugarcane drill heartworm cause to sugarcane? Take a look</h1>
Cause dry heart seedlings: Sugarcane cane seedlings After transplanting, sugarcane drill heartworm adults will lay eggs at the base of the cane seedlings, and then the hatched larvae will drill into the base of the stem of the sugarcane seedlings from the leaf sheath for feeding hazards, causing the stem base to be "eaten empty" and rotted, resulting in yellowing and drying of the upper leaves, commonly known as "dry heart seedlings".
Cause borer joints: If the early sugarcane drill heartworm is not well controlled, the larvae of the sugarcane drill heartworm or the cane node of the sugarcane drill are drilled into the sugarcane for feeding after the sugarcane is jointed, which will "eat empty" the sugarcane meat into a tunnel-like hole, affecting the growth of the sugarcane and the quality of the later stage.
Cause red rot disease, etc.: Sugarcane drill heartworm larvae will leave wounds on sugarcane after drilling sugarcane stalks and cane nodes, and new wounds will be conducive to the invasion of various disease pathogens such as red rot disease under suitable external conditions, thus triggering the occurrence of other diseases and aggravating the harm to sugarcane.
<h1 class= "pgc-h-arrow-right" > why are sugarcane drill heartworms in Chongzuo, Guangxi more serious and more difficult to prevent? In fact, it is mainly related to the shortcomings in the prevention and control of farmers</h1>
1. The work of clearing the garden in winter is not in place
Sugarcane drill heartworm mainly uses larvae to overwinter in the rhizome of sugarcane, if the cane farmers do not remove the diseased cane roots to the field in time after the sugarcane harvest, nor do they need to plough the soil to dry the soil and disinfect, then the larvae of the sugarcane drill heartworm will successfully overwinter and aggravate the harm to the next stubble.
2. Sugarcane drill heartworms are rich in food
Chongzuo is the main sugar cane production area in Guangxi, this side is a typical intensive planting mode almost every household has sugarcane, a large area of sugar cane is equivalent to providing a large number of and rich food sources for sugarcane drill heartworms, coupled with the ability of sugarcane drill heartworms to fly and have the ability to transfer egg laying and transfer hazards, so it is inevitable that sugarcane drill heartworms live in a "comfort zone" with abundant food and occur seriously year by year.
3, the occurrence of poor management of cane fields will be more serious
Although sugar cane planting is relatively simple and the management difficulty is not as fine as citrus, if the necessary field management such as timely removal of weeds, removal of diseased old leaves, reasonable fertilization, etc. are not done well, it will lead to overgrown and closed and dark in the field, which will make the sugar cane plant grow poorly and at the same time help the hiding and spawning of adult sugarcane drill heartworms and aggravate the harm.
4. Farmers have not implemented stubble rotation
Sugar cane has been planted here for many years, many farmers' fields are planted sugar cane for many years, so that although planting can achieve continuous income, but the income will not increase year by year, because stubble planting will not only "squeeze dry" the soil but also increase the increase of diseases and insect eggs in the soil, thereby aggravating the occurrence of diseases and insect pests, increasing the difficulty of prevention and control.
5, sugar cane prices are low, farmers see insects before they fight insects
As mentioned earlier, sugar cane management is relatively easy and extensive, and at the same time, in recent years, the price is low, many cane farmers have changed to citrus, but most of the farmers with poor economic foundation are still insisting on planting sugar cane, but the level of medication is not so high, they are choosing cheaper agricultural products and many of them are insects to see insects, let alone prevent in advance, but this often makes sugarcane drill heartworms "breathe" and aggravate the harm.
The left side is not weeded in time to grow weakly
<h1 class= "pgc-h-arrow-right" > sugarcane drill heartworm will cause a serious reduction in sugarcane production once it is damaged by drilling moths, and cane farmers want to prevent sugarcane drill heartworms to increase sugarcane production? Try using this formula, use it 2 times a season to kill insects and strengthen the roots</h1>
Sugarcane drill heartworm once the damage of the drill moth will cause a serious reduction in sugarcane yield, so cane farmers must strengthen the awareness of active prevention, you can use 40% chloranthramide • thiamethoxam water dispersion granules in sugarcane sowing and after the emergence of seedlings, which can effectively reduce the occurrence of sugarcane drill heartworms.
Why is this formula effective in reducing the occurrence of sugarcane drill heartshodes? First of all, one of the components of the formula, chlorpyrifos benzamide, has a high insecticidal activity against sugarcane drill heartworms, and secondly, the dithiamethoxine of the ingredients can stimulate crop rooting and germination due to special chemical factors, so the combination of the two can effectively control the occurrence of sugarcane drill heartworms, and has a root-strengthening effect on sugarcane rhizomes.
What is the specific effect? Let's take a look
The first time to use the drug: in the sugarcane sowing, use 40% chloranthramide • thiamethoxam water dispersible granules 20g first diluted with a small amount of water, the fertilizer mixer will be used to mix the liquid with fertilizer and then sprinkled into the cane field as a base fertilizer.
The second medication: in the sugarcane seedling growth to about 15 cm, in the use of 40% chloranthramide · thiamethoxam water dispersion granules 20g / mu with water spray, to the roots and leaves of sugarcane for a uniform spray, so as to be able to effectively and comprehensively care for the healthy growth of sugarcane.
Post-drug results: After two uses, we conducted a follow-up observation and found that the plants in the sugarcane fields that had been used with 40% chloranthramide, thiotoxazine water dispersion granules and sprays had robust growth, relatively thick green leaves, and no sugarcane drill heartworm hazards, while the unused sugarcane fields had weak plant growth and obvious "dry heart seedlings" in the field. The results of this experiment show that the use of 40% chlorhexabenzamide and thiamethoxam water dispersible granules for seed mixing and spraying during sowing of sugarcane and after emergence of seedlings has a good control effect on sugarcane drill heartworm after two consecutive uses, in addition to promoting the robust growth of sugarcane and improving the ability to resist diseases and insects.
The test area on the left and the farmers on the right are self-defending
<h1 class = "pgc-h-arrow-right" > for the control of sugarcane drill heartworm, in addition to the use of chemical agents for control, we must pay more attention to agricultural basic control, so as to reduce the difficulty of chemical control and reduce the cost of input</h1>
1. Scientific and reasonable fertilization to cultivate robust plants
For the fertilization of sugar cane, it is recommended to use high-quality organic fertilizer + appropriate amount of microbial fertilizer + compound fertilizer instead of the use of a large number of compound fertilizers, which can effectively improve the soil structure to improve the fertility of the soil, but also better promote the root and strong seedlings, the benefits are quite numerous; secondly, in the topdressing, we should pay attention to the supplement of trace elements, especially trace elements, if the lack will make the seedlings yellowing phenomenon and weaken the growth is conducive to the harm of sugarcane drill heartworms.
2. Strengthen field management and tidy countryside
In the sugarcane planting process must be timely removal of weeds, you can spray before sowing a seedling before the closure of weeding control, after the emergence of sugarcane seedlings to timely weeding according to the field weeds, so as to avoid weeds and strong nutrients weakened plant growth while reducing the harm of sugarcane drill heartworm; secondly, timely cultivation of soil, watering, so as to cultivate robust cane seedlings to reduce the harm of drill heartworms.
3. After the sugarcane harvest, the garden should be cleared scientifically and reasonably
After the sugarcane harvest, the cane farmers must clean up the old leaves, diseased leaves and diseased cane left in the field to burn outside the field, and then conditionally use quicklime powder to spread the field, and then use the tiller to repeatedly plough and dry the sugarcane field, which can effectively kill the overwintering drill heartworm larvae and reduce the harm in the next year.
4. Reasonable stubble rotation
For more than 3-5 years of continuous planting, the occurrence of sugarcane drill heartworm is more serious, cane farmers can consider stubble rotation, which can be stubble rotation between different crops or water and drought rotation, which can reduce the accumulation of sugarcane drill heartworm from the root and avoid soil continuous cropping obstacles.
All in all, sugarcane drill heartworm can be prevented and controlled, but once it drills the damage inside the sugarcane stalk, it cannot be saved, so we must pay attention to active prevention work, the use of the above formula can effectively prevent the outbreak of sugarcane drill heartworm, but in addition to the use of chemical agents, we must also strengthen the basic prevention and control of agriculture, so as to reduce the difficulty of chemical control and help easily plant sugarcane.