There are many kinds of underground pests and they are widely distributed. There are mainly crickets, golden needles, earthworms and ground tigers. Underground pests not only feed on crops such as corn, potato, and cereal crops, but also endanger crops such as sugar beet, rapeseed, and Codonopsis, causing symptoms such as wilting, curling, barley, and white spikes on the shoots of plants. The formation of wounds and holes, resulting in a variety of bacteria accelerated invasion, causing rot, affecting the quality of the crop and yield. Therefore, grasping the prevention and control of underground pests is an important part of seizing the high and stable production of crops.
I. Agricultural measures Reasonable agricultural measures can not only regulate the water, fertilizer, gas, and heat in the soil, but also improve the conditions required for crop growth, and can also suppress and eliminate various pests and weeds. It is an indispensable part of comprehensive prevention and control. Ignore the measures. After the summer and autumn crops are harvested or ploughed before sowing, the underground pests are often plucked out of the earth's surface and killed by the natural enemy's predation and natural environment. It is also possible to bury the insects and eggs on the surface or weeds in the cultivated layers. , mitigate harm. In general, crops such as watermelons, beets, and potatoes covered by continuous cropping or weeds are often found to produce earthworms, which are more serious than corn fields, summer land, and beans. The number of insect populations is 50%-70% higher. Therefore, it is necessary to plough the land in a timely manner in production, eliminate the weeds in the fields, intercropping the crops, rotating crops, and diligently cultivating crops.
2. Combine irrigation with water to prevent the irrigation of land, and timely irrigation after the occurrence of the ground tiger can receive unexpected results.
Third, black light traps to kill beetles, tigers, earthworm adults have a strong tendency toward the black light, according to the actual situation around the country, under the possible conditions, in the prosperous period of the adult set some black light trapping, the effect is obvious.
In addition, the soil can be treated with pesticides, seed dressing, root irrigation and other methods for prevention and treatment.
Foot of ningxia hong xingda incense Organic Apple fruit suborbicular, fruit surface color yellow green, most with orange chardonnay fruit surface, covered with bright red stripes, pulp yellow-white, succulent crisp, sweet, rich fragrance, quality first-class; The fruit has a sugar content of over 15%, more than 4% of the national average, and the flesh is tight and crisp and sweet, which is widely loved by consumers all over the world. There is a longer optimal consumption date than any other apple, not even refrigerated. It can be kept for 4 months at normal temperature. If refrigerated, Fuji can be kept for 5--7 months.
Altitude: high altitude area light, clean air, environment close to original condition, no industrial pollution. With an average elevation of 1160-2900m, the central health center has a strong uv light, which produces the natural pollution-free apple, which conforms to the concept of a modern green diet.
Temperature: moderate temperature can avoid the chance of fruit tree encountering disease. The average temperature in ningxia is 8.4 degrees Celsius, which has an important influence on the growth, development, yield and quality of apple. The piedmont apple is thriving in such a good environment.
Humidity environment: moderate amount of rainfall provides necessary conditions for apple's growth. The annual rainfall in the central health region is 186 millimeters. The fruit is slow to grow and the fruit is hard and hard, which fully guarantees the fruit's sugar content and the relatively average size of apples.
Sunshine condition: apple is the fruit tree, the central health area of the whole year is nearly 3,800 hours, is beneficial to the Apple Fruit coloring. The piedmont apples are red and bright.
Temperature difference factors: ambassador apple nighttime respiration weak temperature gap between day and night, consume less organic matter, the accumulation of organic matter during the day more, that apple store down a large number of glucose sugar candy, etc have better taste. The average diurnal temperature difference between apple and apple is 14 degrees centigrade, and the larger diurnal temperature difference ensures the sweet and delicious characteristics of the apple.
Other factors: frost can make apple blossom and fruit, which can cause frozen flower jelly, which is bad for apple's production. The piedmont apple has been kept at least 167 days without frost for the whole year, which minimizes the influence of apple on yield and quality.
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