The grassland moth, also known as the "moth", is by far recognized as the most dangerous pest, according to reports, only in China, there are fifteen provinces, municipalities and autonomous regions found, and is still spreading, the harm is very serious.
What does the Meadow Moth look like?
Meadow nocturnal moth is a kind of omnivorous insect native to the weekly tropics and subtropics, the host plant is very very many, all kinds of plants, especially corn is the most endangered, the grassland nocturnal moth is a completely perverted pest, through eggs, larvae, pupae, adult four stages.
The ovoids are spherical, starting with light green or white, slowly turning brown, half of which are on the front of the leaves, concentrating on laying eggs. The larvae have a total of six instars with four squarely arranged black spots on the abdomen and Y-shaped spots on the head, which are a prominent feature of the grass moth.
Female moths are typically characterized by grey-brown rings and kidney-shaped stripes on the forewings, white spots on the apical horns, white hindwings, and gray bands on the posterior margins.
And the current global temperature is generally high, so the time of biological migration to the north may be earlier, so it is necessary to pay attention to it in time. Moreover, in this year's No. 1 document of the Central Committee, the grassland night moth has also entered the document, clearly pointing out that it is necessary to do a good job in the prevention and control of major diseases and insect pests in central and southern China such as the grassland night moth, promote unified prevention and rule, and cultivate and plant on behalf of others.
Why is it happening in large areas?
Because of the large amount of insects in the domestic annual breeding area in winter, from November last year to January this year, the corn planting areas such as southwest China continued to detect hazards, and insects were seen in Yunnan, Sichuan and other places, and the source of insects was significantly higher.
Therefore, the key technical measures should be optimized, according to the occurrence and development law of the grassland night moth, combined with prediction and forecasting, and the physical and chemical inducement control, biological ecological control, and chemical control should be adopted according to local conditions. If you want to know more about agricultural materials, welcome to follow me, if you feel that the content is helpful to you, you can forward it to a friend