Is it okay for corn stalks to attract aphids and sheep to eat?

Corn stalks attract aphids, sheep can eat it.

Hello, there are aphids on the corn stalks, sheep will not produce parasites when they eat them, aphids cannot parasitize in the sheep's body, and the sheep's digestive organs will also digest it. Corn stalks have aphids and sheep can completely tolerate the slaughter to eat, because aphids are not poisonous and tasteless, and it will not be harmful for any animal to eat it. Aphids, also known as greasy insects and honey worms, are a kind of herbivorous insects, which are polymorphic insects, with the same species having wingless and winged, winged individuals have one eye, and wingless individuals have no single eye.

There are 2 pairs of wings in wings, the forewings are large, the hindwings are small, and the forewings have a thick vein formed by the merging of longitudinal veins near the anterior margin, and there are wing nevi at the ends. There is a pair of abdominal canals on the dorsal side of the 6th abdominal segment, and there is a caudal piece at the end of the abdomen.

But generally the straw that is harvested after 15 days of spraying is fine.

Cattle Breeding Techniques:

1. Breeding environment.

Cattle breeding requires the establishment of cattle barns in higher terrain, dry soil, abundant forage resources and good transportation. The breeding environment is very important for the growth of cattle, and a good environment can improve the growth capacity of cattle and reduce feed costs. If the environment is not suitable, it will not only affect the growth of cattle, but also reduce the conversion rate of feed utilization.

Therefore, when we build a barn, we must ensure that the environment is suitable for the growth of cattle, including temperature and humidity, light and air quality. Provide a good environment for cattle to grow.

2. Variety breeding.

The quality of the breed is also directly related to the efficiency of cattle breeding. When we introduce seeds, we need to ensure that they are similar in appearance and body type, and have good genetic ability. Breeding cattle must first ensure that they have good reproductive ability and can give birth to litters normally.

And the growth is robust and disease-free, so that the offspring of young cattle can have a strong growth ability.

3. Feeding management.

The main feed for cattle is pasture, but the growth of grass in the grip ridge varies from season to season. The amount and frequency of feed should be adjusted according to seasonal changes. For example, in the summer and other peak forage growth periods, feed about 3 times a day, with an appropriate amount of compound feed.

Then after feeding, feed with water in time. In winter and spring, reduce the feeding once a day and increase the amount of compound feed. After feeding, it is best to let the cattle exercise properly, so that the cattle can increase the speed of the skin disturbance cycle, promote feed consumption, and prevent the accumulation of water from affecting the growth of cattle.

4. Daily management.

We should pay attention to the amount of feeding, there should be no residues in the trough and trough, and then we should regularly disinfect and deworm the cowshed and cattle. About once a week, the sink and trough should also be disinfected, and the disinfectant can be sprinkled with quicklime. It is necessary to control the temperature of the barn, and pay attention to prevent the cattle from being exposed to direct sunlight in summer, improve the shade, and enhance the permeability.

Finally, it is necessary to add some drugs that are conducive to digestion to the feed to enhance the disease resistance of cattle and improve the breeding efficiency.

5. Keep warm. In winter, the temperature is low, and it is necessary to add the right amount of forage to the barn to avoid frostbite of the cattle. Lao Dan.

Corn aphid is one of the major crop insect pests, with a wide range of hosts, many reproductive generations, and serious damage, and is the main spreader of corn virus diseases. In the flowering and pollination stage of corn, the pests of aphids make the male flowers of corn corrupt and pollinate poorly, forming infertile fruit stalks, and at the same time, aphids suck corn juice to make corn premature aging and even die, and the excreted honeydew sticks to the corn leaves to affect photosynthesis, resulting in a decrease in yield.

There are three reasons for the outbreak of corn aphids: first, the hot and dry climate in mid to late July is suitable for the reproduction of aphids, and the number of winged aphids is large and the spread speed is fast; Second, the number of natural enemies of aphids is small, the number of 100 insects of the seven-star drifting insect is less than five, and the lacewings are rarely found, and the natural enemies cannot control the spread of aphids; Third, corn juice is abundant, which provides sufficient nutrients for the occurrence of corn aphids. If it is not controlled in time, it will spread further on a large scale, causing heavy economic losses.

Corn aphids must be sprayed, if not sprayed will be harmful until the autumn harvest, the yield reduction is particularly obvious. The first method of controlling greasy insects can be dimethoate, and the second method can be used to fight aphids. It is recommended to follow the requirements of the instructions when spraying these two pesticides.

It is best to use an ordinary sprayer, that is, a back sprayer for spraying, do not take the method of sprinkling and fumigation because of trouble, which is not effective. In addition, it is recommended to prevent groups, so that the effect will be better, otherwise after spraying in their own fields, due to the influence of the surrounding corn fields, it will not take long to cause greasy insects. At the same time, farmers are reminded to pay attention to safety during spraying.

1. Seed dressing.

The so-called pesticide seed dressing is to mix the seeds with an appropriate amount of pesticide before planting, and then sow the seeds. The agent protects the seeds, and this is the first coating. After the seeds germinate in the later stage, the drug is sprayed once and the heart is coated twice, so that aphids can be effectively prevented.

2. Spraying and fertilizing.

When aphids occur in corn, the pests should be brushed off as soon as possible, and then sprayed with imidacloprid and pyrethoxam as soon as possible, once every other week, about three or four times can be controlled. In addition, it is not only sprayed when there is a pest, but it can also be controlled by mixing the appropriate amount of pesticide in it every time you apply fertilizer.

3. Improve the environment.

When there is aphid damage, in addition to spraying drugs to prevent it, it is also necessary to improve the environment. When the disease is often caused by a high temperature environment or poor ventilation, it should be frequently annihilated and weeded to ensure ventilation, which can effectively reduce the harm of aphids. In addition, it is best to plant it in a well-lit place when planting, as the chance of infection with aphids will be reduced if there is enough light.