Rice pest control: how to control rice locusts?
How to control rice locusts? What are the hazards of rice locusts? Please introduce the harm of rice locusts: Rice locusts, commonly known as "grasshoppers", are one of the important pests in the middle and later stages of rice. both adults and nymphs cause damage, mainly to rice, but also to corn, sorghum, beans and other crops. In the milky stage of rice, white panicles are often caused by biting off the ear neck and branchlets, resulting in a serious reduction in rice yield. The control methods of rice locusts are as follows: 1. 21% EC (synergistic cyanide? Horse EC) 1500-2000 times liquid spray. 2. Use 4.5% cypermethrin EC 1500 times liquid spray. 3. Using 21% Kill 2000 EC 1500 Mel 2000 times liquid spray. 4. The biological pesticides used to control locusts are microsporidium locusts, Metarhizium anisopliae and azadirachtin. Locust microsporidia are locust-specific, single-celled protozoa. Locusts can cause microsporidiosis after eating food with microsporidia. Metarhizium anisopliae is the pathogenic fungus of locusts. After the locusts come into contact with the fungus, the fungus can penetrate the locust's skin (body wall) and enter the locust's body to reproduce, either produce toxins, or the hyphae grow all over the locust's body to kill the locust. Azadirachtin is a substance extracted from a tree called neem and is a botanical insecticide. Click to get more rice planting techniques click to get more food crop planting techniques
- Prev
Rice pest control: what is rice downy mildew?
What is rice downy mildew? What are the hazards of rice downy mildew? How to prevent and cure rice downy mildew? Please guide the harm of rice downy mildew: Rice downy mildew generally appears symptoms in the late stage of seedling field, and the symptoms are significant in the peak tillering stage. The diseased plant is dwarf, the leaf color is light green; the leaves have yellow-white dots, round or oval.
- Next
Control of Rice Diseases and insect pests: what is Rice bacterial Brown Stripe?
What is bacterial brown stripe of rice? What are the hazards of rice bacterial brown stripe disease? How to prevent and cure bacterial brown stripe of rice? Please introduce the harm of rice bacterial brown stripe disease: small brown spots appear on leaves or leaf sheaths at seedling stage, and then expand into purple-brown stripes, sometimes as long as leaves.
Related
- The first cup of black tea in spring, the flavor and history of tea gardens in Kenya, Africa
- The computer can not only choose potatoes, but also grow tea rice. AI will grow winter oolong tea champion.
- It is not only the inflated tea bitten by insects, but also engraved with the four seasons tea in Beipu.
- The Oriental Beauty Tea Festival in Zhuxian County takes the stage at the weekend to experience the plus-size feast of oil tea.
- & quot; Oriental Beauty Tea & Exploration of Emei in Hsinchu, the hometown of quot;
- The new variety of strawberry "Tainong 1" dessert is the first choice with mellow aroma. Crimson gorgeous
- History of Tea in Taiwan: from Wild Inner Mountain to Export Tea Garden
- Two types of Taiwan Oriental Beauty Black Tea won the British three-Star Award for Childhood Tea Xiang Zhang Jiaqi changed from pilot to champion tea maker.
- Banana species and varieties: the planting history of Taiwan Xianren banana and dwarf banana is long, is banana disease resistant?
- Coffee planting Technology: Qianjie Coffee from Seedling to harvesting