In China's agricultural planting, there are often a variety of plant diseases and insects, and aphids are one of them, aphids, also known as greasy insects, honey worms. Includes all members of the Aphid Section. There are many varieties, and thousands of them have been found so far. The following small series will introduce the more common aphid species in agricultural planting. Let's take a look at it together.
aphids
Aphid species picture book
1. Vegetable aphids
Vegetable aphids
Aphids parasitize cruciferous vegetables such as cabbage, rapeseed, radish, mustard greens, cabbage, cabbage, cauliflower, turnips, etc., and prefer cabbage and mustard-type rapeseed. It is harmful on the back of vegetable leaves or on the young leaves of the seedling plant, causing internodes to become shorter and curvier, and the young leaves to shrink downward deformity, making the plant short, affecting the heart or spun, resulting in yield reduction. Left-in vegetables are not able to pump, flower and seed normally. Simultaneous transmission of viral diseases.
Second, wheat long tube aphid
Wheat tube aphid
Wheat tube aphid is an important pest of wheat crops, distributed in China's wheat-producing areas, host wheat, barley, oats, southern occasional rice, corn, sugarcane, grass, etc., the early stage is concentrated on the front or back of the leaf, the later stage is concentrated on the ear to suck sap, resulting in slow growth of the affected plants, reduced tillering, and a decline in the weight of a thousand grains.
3. Mr. Ishihara Ball
Mr. Ishihara Ball
Ishihara's bulbous aphids form a 7 cm long conical gall on the small branches of spruce trees, which break open in the middle of summer and the adults migrate to Douglas fir to lay their eggs. His life history can be completed both on spruce and douglas fir. Spraying pesticides, removing galls before adults emerge and planting two kinds of trees separately can be controlled.
Fourth, maize root aphid
Maize root aphid
Maize root aphids depend on ants in cornfields for survival, and eggs are stored in nests by ants in winter, and in spring ants move the eggs to the grass roots and then to the corn roots. It is a major pest of corn, which can stop growing, yellowing and wilting, and also harm other crops.
5. Red gall ball aphid
Red gall ball aphid
Gigantic aphid is a pest of the sucking mouthpiece, often clustered in the leaves, young stems, flower buds, top buds and other parts, stinging sap, so that the leaves shrink, curl, deformity, serious caused by the wilting of branches and leaves or even the death of the whole plant. The secreted honeydew can also induce coal pollution, viral diseases and incur ant pests.
6. Wheat dipter
Wheat dipter aphid
Wheat dipter is one of the major pests of wheat, oats and other small grains, often in the wheat leaf front, back or base leaf sheath inside and outside the sap sucking, resulting in wheat seedlings yellow or ground can not be jointed, serious wheat plants can not be normally pumped, directly affecting the yield, in addition to the spread of wheat yellow dwarf disease.
7. Peach aphids
Peach aphids
Peach aphid is a widely edible pest, the winter host plants mainly include pears, peaches, plums, plums, cherries and other rose fruit trees, etc., summer host crops mainly include cabbage, kale, radish, mustard greens, brassicas, turnips, bell peppers, peppers, spinach and other crops. It is not only the main pest of bell pepper cultivation, but also the main vector of transmission of various plant viruses.
8. Cotton aphids
Cotton aphids
Cotton aphid is one of the important pests in the cotton seedling stage, a worldwide cotton pest, which occurs in all cotton areas of China, producing larvae all year round in warm areas and laying eggs in cool areas. In order to harm more than 10 kinds of crops such as melon, cotton and cucumber, parasitic natural enemies and predatory predators are often controlled.
Nine, bean long tube aphid
Bean long tube aphid
Bean long-tube aphid light green, killing peas, spreading soybean mosaic disease. Overwinter on axle grass and alfalfa and migrate to peas in the spring. Each female aphid produces 50 to 100 juvenile aphids, 7 to 20 generations per year. Can be sprayed with insecticide control.
10. Potato long-tube aphid
Potato long-tube aphid
The potato tube aphid lays black eggs on roses, hatches pink and green aphids, eat buds and leaves, and migrate to the summer host (potato) in early spring, every 2 to 3 weeks. It is a vector of tomato and potato mosaic viruses, feeding on leaves, and killing vines and flowers.
11. Monthly long tube aphid
Monthly long tube aphid
The long-tube aphid of the month is based on adults and nymphs clustered on the new shoots, young leaves, peduncles and buds of the host plant, and the branches grow slowly after the plant is damaged, the buds and young leaves are not easy to stretch, the flowers become smaller, and induce coal pollution, which makes the branches and leaves black, which seriously affects the ornamental value.
XII. Rose round-tailed aphid
Rose round-tailed aphid
Rose round-tailed aphid is an important pest of apples, deforming the fruit (aphid apple) and curling leaves (protecting aphids from pesticide spraying). Life history includes a replacement host plantain, which returns to the apple tree in autumn to lay eggs, and also harms pears, hawthorn, catalpa and so on. Control methods are spraying and using its natural enemies (aphids, ladybirds, grasshoppers, parasitic wasps).
Thirteen, apple cotton aphids
Apple cotton aphids
The apple aphid is an insect of the genus Aphid in the family Aphididae, which usually parasitizes in the rough skin cracks of apple branches, cut wounds, saw openings, new leaf axils, and bare surface rhizospheres, aspirate sap and consume tree nutrients. After the fruit tree is damaged, the tree weakens and its life expectancy is shortened, so all countries in the world list apple aphids as import and export quarantine objects.
Fourteen, chrysanthemum small long tube aphid
Chrysanthemum small long-tube aphid
Chrysanthemums are the hosts of small long-tube aphids such as white art, chrysanthemums, mugwort, wild chrysanthemums, etc., and often suck juice on the leaves and stems of the host chrysanthemums. In the spring, when chrysanthemums sprout and sprout leaves, they can also cluster new shoots and new leaves, making it difficult for new leaves to unfold, and the elongation and development of stems are affected. When flowering in autumn, it is harmful to cluster on the peduncle and buds, and the flowering is not normal. During the whitening procedure, the leaves are yellowed, the plants are atrophied, the growth is poor, and the secretion of honeydew is all over the leaf surface, and photosynthesis is affected.
Fifteen, apples
Aphids
Adult apples are yellowish-green, with black heads and feet and black eggs, and overwinter on the apple tree of their sole host.
The above fifteen kinds of aphids are more common pests in agriculture, and the aphids produced by different crops are also different due to different growing environments. Aphids are widely distributed worldwide, but are mainly concentrated in temperate regions. In addition, aphids have a variety of transmission methods, one of the more peculiar ones is that it can be migrated remotely, mainly through the form of drifting with the wind. The above content is sorted out by Xiaobian for you, I hope it will be helpful to you.