What is Liriomyza huidobrensis?
What is Liriomyza huidobrensis? What is the harm of Liriomyza huidobrensis to beans? Is there any good prevention and control method? Also ask netizens to help introduce the harm and control methods of Liriomyza huidobrensis, which are listed below for netizens' reference. The harm of Liriomyza huidobrensis to beans: Liriomyza huidobrensis mainly uses larvae to eat the leaf juice and mesophyll between the upper and lower epidermis of plant leaves, forming a nearly circular pitted macula on the leaves, and the larvae eat mesophyll on the leaves to form a tunnel with twists and turns. There is no certain direction, forming pattern gray-white stripes, causing damage to beans, eggplant, towel gourd and other vegetables, seriously affecting the normal growth and development of vegetables. The control methods of Liriomyza huidobrensis are mainly divided into agricultural prevention and control methods and chemical prevention and control methods: turning deeply in time after the previous crop harvest can reduce the insect population and reduce the harm. Using the phototaxis of Liriomyza huidobrensis, the adults can be killed by black light, mixed with oil and butter on the yellow plate, inserted into the field, stick to the flying adults, insert 20-30 pieces of yellow plate per mu. Chemical control method: the effect of early control is the best in the critical period from the peak spawning period to the early hatching stage of Liriomyza huidobrensis. Choose 48% Lesbon EC 1000 times, 20% Liriomyza Bao EC 3000 times, 2.5% Kung Fu EC 2000-3000 times, 1.8% avermectin EC 3000 times, 75% Qianke 5000 times, 5% Regent 1000 times. According to the characteristics of larvae feeding on juice and mesophyll, 500 times anti-disease liquid (damaging Lipin, killing insects) and appropriate amount of liquor can be added to the medicine solution to improve the efficacy. In order to prevent the development of drug resistance, the above pesticides should be used alternately. Click to get more bean planting techniques click to get more vegetable planting techniques
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Bean planting: how to keep beans fresh?
How to keep the beans fresh? How can beans be well preserved? Please introduce the method: if you want to keep the beans fresh for a long time, you can refer to the following methods: first, the bag storage method: first, put the beans flat in the basket or wooden box, leaving a certain gap in the middle, do not pack it too tightly. And then move in.
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Sweet potato planting: when will sweet potatoes be harvested?
When will the sweet potatoes be put away? Please give detailed guidance on the harvest time of sweet potatoes can be determined with reference to the following methods: 1, can be harvested according to the ground temperature. When the soil temperature is about 18 ℃, the weight of sweet potato increases little; when the ground temperature is about 15 ℃, the sweet potato stops expanding; when the ground temperature is below 9 ℃ for a long time, cold occurs.
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