According to the analysis and prediction of the National Agricultural Technology Center and relevant experts, in 2015, the No. 2 moth was occurring in most areas of Huanghuaihai, and the central and southern parts of Hebei and northeastern Shandong were partially heavier, with an area of ​​about 25 million mu.
Prevention and control target
The prevention and treatment rate of the two-pointed moth in the cornfield reached more than 90%, the overall control effect reached more than 85%, and the corn damage loss rate was controlled below 5%.
Prevention and Control Strategy
We will vigorously promote green prevention and control technologies based on agricultural control and physical control, supplemented by chemical control, and promote scientific and topical use to reduce the use of pesticides to ensure the quality and safety of corn production and environmental safety in the field.
Prevention and Control Measures
(1) Prevention and Control Key
Mainly in the wheat field in the wheat field, the wheat straw and the wheat field covered with thick wheat fields after the wheat harvest are the focus. The key prevention and control period is before the wheat harvest and before the summer maize 6 leaf stage.
(II) Main technical measures
Agricultural Measures (1) Deep Cultivation Winter Leisure Field
Deeply ploughing the plots of cotton fields, soybean fields and Other winter leisure fields without autumn ploughing, destroying the habitat of wintering larvae of the larvae and reducing the number of insects.
(2) Before the sowing, the cockroach or the Qing dynasty
When harvesting wheat, the stalking and smashing device is smashed on the harvester to smash the wheat straw; at the same time, the straw rotant is applied in the wheat field to effectively reduce the damage of the larvae. It can also be combined with the local straw energy utilization project to clean the wheat straw to the field and collect it for recycling.
(3) Clearing the covering on the corn seeding ditch
According to the characteristics of the larvae of the larvae of the larvae, the straw stalk cleaning device or the artificial tools such as hooks and hoes can be used on the corn planter to partially clean the wheat straw and wheat stalks of the seeding ditch, revealing the seeding ditch and making the corn seedlings The base of the rear stem has no covering and eliminates the suitable environment for the hidden damage of the larvae of the larvae. When the physiology control wheat harvest begins to use the insect trap light to induce large-scale trapping of the adults of the larvae of the larvae, the insects are trapped by a lamp lamp every 30~50 acres to reduce the number of eggs in the summer corn field and reduce the insects. The source base reduces the hazard.
Chemical control (1) After sowing, pre-emergence spray
The straw is not treated and there is a possible plot of the two-pointed moth. Before the summer maize is released, the high-pressure sprayer is used to spray the covered wheat straw to kill the adult eggs and eggs that lay eggs on the wheat straw. And larvae. The use of the agent may be selected from the treatment of a salt of methacrylate, chlorpyrifos, chlorantraniliprole, etc., to avoid the use of pyrethroid pesticides alone.
(2) Post-emergence spray
Before the 6-leaf stage of maize, a serious plot of the larvae of the second-instar larvae can be sprayed locally, sprayed with the liquid in the ridge, or directly sprayed with the sprinkler to directly kill the older larvae.
(3) poison bait trapping
Use a chlorpyrifos, a chlorpyrifos, a chlorantraniliprole or a phoxim to dispose of the bait. In the evening, place it around the roots of the corn that has passed through the ridges. Do not sprinkle it on the corn.
(4) Saisoning soil
Use chlorpyrifos, chlorantraniliprole, etc. to make toxic soil evenly spread around the roots of the corn in the ridge, keep the seedlings around the tree, and keep the poisonous soil at a certain distance from the corn seedlings to avoid phytotoxicity.
Specialized anti-government main push technology
The physical trapping technique is used in the emergence of the adult larvae of the larvae of the larvae in the wheat harvest, and the organization is unified, and the adult worms and sexual attractants are used to trap the adult worms.
The pre-sowing cockroach technique hangs a rotary tillage device on the harvester during wheat harvesting, and smashes the wheat straw to destroy the spawning and habitat of the larvae before the sowing of summer corn.
Remove the cover on the corn planting ditch and add a straw cleaning device on the corn planter to remove the wheat straw and wheat bran on the seeding ditch, and eliminate the suitable environment for the hidden damage of the larvae of the larvae.
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