What is an adult aphid and how are they formed?

Aphids. In the summer camp parthenogenesis, ovoviviparous, giving birth to young aphids. Female and male aphids appear in late summer, and after mating, the female aphids lay eggs and overwinter with their eggs.

Aphids, also known as greasy insects and honey worms, are a class of herbivorous insects.

It includes all members under the family Aphidoidae (also known as the family Aphidoidea). There are about 4,400 species of aphids in 10 families, most of which belong to the family Aphididae.

Aphids are also one of the most destructive pests on the planet. About 250 of these are pests that are serious for the agroforestry and horticulture industries. Aphids vary in size, ranging from one to ten millimeters in length.

The natural enemies of aphids are ladybugs, aphid-eating flies, parasitic wasps, aphid-eating gall mosquitoes, crab spiders, lacewings, and entomopathogenic fungi.

Aphids are widely distributed worldwide, but are mainly concentrated in temperate regions. In addition, species diversity is much lower in the tropics than in temperate zones. Aphids can migrate remotely, mainly by drifting in the wind; For example, the lettuce aphid is thought to have spread from New Zealand to Tasmania in this way.

Some human activities can also help with the migration of aphids, such as the process of transporting plants that attach aphids.

Aphids suddenly appear on plants that are not originally free of aphids, and they can breed in two ways. One is hatched from eggs produced by the mating of male and female aphids in the previous year, and the other is an aphid produced by winged aphids that land on plants. Aphids usually produce offspring in parthenogenesis, and the vast majority of wingless aphids we see on plants are female aphids.

Aphids, also known as aphid flies, are a common small insect that usually sucks plant sap on plants, which can cause problems such as withering and dying in severe cases. So, how did aphids get to plants? Aphids reproduce quickly, and a female aphid can lay more than 100 eggs in a month, so once an aphid appears on a plant, it is easy for an aphid to multiply and spread quickly.

The spread of aphids is mainly carried out in the following ways:

1.Wind transmission: Aphids are light and only need a breeze to spread to surrounding plants.

2.Animal transmission: Aphids can spread by sticking to the body of animals such as insects or birds and being carried by them to other plants.

3.Soil transmission: Some aphid eggs can survive in the soil, and when new plant roots grow into the soil where they are located, these eggs can hatch into new aphids that can spread to plants.

4.Waterborne: Some aphids are carried to other plants by water currents, especially in places where water has been standing all year round.

5.Plant spread: Some aphids can take advantage of plant-to-plant spread and climb from plant to plant to spread aphids.

In addition, the climate and other environmental factors in different seasons, such as temperature, humidity, air currents, etc., can also affect the migration and reproduction of aphids, thus affecting their distribution on plants.

How to prevent and ** aphids? Because aphids multiply quickly and are difficult to control once they appear, the best way is to prevent them. Here are a few ways to prevent aphids:

1.Inspect the plants regularly, and if aphids are found, they should be taken immediately.

2.Frequent watering, fertilizing, pruning, and ventilation of plants make them healthy and less prone to aphids.

3.Using natural insect repellents, such as sumac oil, cattails, etc., are safer to use than chemicals.

4.If there are aphids on the plant, it is best to isolate the plant to avoid the aphid spreading to other plants.

In short, aphids are a common pest, they are spread through a variety of ways, and will cause serious harm to plants, therefore, we should always pay attention to the health of plants, find aphids in time and take corresponding measures to prevent and **.

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Aphids are herbivorous insects of the order Hemiptera, their alias are greasy insects, honey worms, etc., which are one of the most destructive pests in the world, and the body length of the aphid is about millimeters, its body is translucent, mostly green or white, and the aphid's reproductive ability is strong, and it can reproduce for 10-30 generations a year.

1. Introduction to aphids

Aphids are pests belonging to the order Hemiptera, there are about 4400 species, and the aphids are more serious to the damage of agriculture, forestry and gardening, it mainly feeds on plants, and aphids are divided into winged and wingless two, its body color is green, white or black, and the body of the aphid is smaller, about millimeters.

2. Habits

The abdomen of the aphid has a pair of abdominal canals, and its abdominal canal is tube-shaped, which can suck the branches and leaves in the leaves of the plant, and will interact with the tissues and organs of the plant to form galls on the plant, resulting in a deformed state of the plant, and the female aphid can be left after birth, and the male can be pregnant without a male.

3. Distribution range

Aphids are widely distributed all over the world, mainly living in temperate tropical areas, and aphids are mainly parasitic on wheat, barley, sorghum, oats, ice grass, corn and other plants, and aphids have strong reproductive ability, female aphids reproduce for 10-30 generations a year, and will spread with the form of wind drifting.

4. Main varieties

The more common varieties of aphids are apple aphid, maize root aphid, Ishihara's ball aphid, spruce gall ball aphid, cabbage aphid, wheat bifurcation aphid, cotton aphid, bean long-tube aphid, etc., among which the apple aphid is yellow-green in adults and likes to parasitize on apple trees, maize root aphid will lay eggs on corn to reproduce, and Ishihara's ball aphid is mostly parasitic on spruce.

1. Introduction: Aphids, also known as honey worms, are a kind of eating insects, but also one of the most destructive pests, aphids have a particularly strong reproductive ability, and they can use their wings to fly long distances. 2. Prevention and control:

If you want to kill aphids on plants, you need to spray them with insecticides to kill all the aphids that parasitize on plants.

1. Pests

Aphids, also known as honey worms, are one of the most destructive pests, which parasitize on plants, and then suck sap in the leaves, young stems, flower buds and other parts of plants, causing the leaves to begin to shrink, and in severe cases, even the whole plant withers and dies.

2. Insecticides

If you want to kill aphids, you can spray the plants with insecticide spraying to kill the aphids parasitic on the plants, but you need to pay attention to the amount of insecticides when using them, so as not to spray too much and affect the health of the plants.

3. Prune

If the leaves of the plant have been eaten by aphids, be sure to cut them off with scissors to avoid the leaves of the plant being infected with diseases and then spreading to other leaves.