The feeding habits of larvae and adults of aphids are significant

The feeding habits of larvae and adults of aphids vary greatly, which is conducive to their survival. The larvae and adults of aphids like to swarm on the back of leaves, young stems, growth points and flowers of plants, and suck the sap in the plant with needle-like stinging mouthparts, which causes the cells of the plant to be damaged, the growth potential is out of balance and causes the leaves to curl and shrink to the back, and the growth of the heart leaves is stunted.

The reproductive cycle of aphids is characterized by the reproduction of females in spring and summer, the reproduction of males and females in autumn, and dormancy in winter. Such reproductive characteristics allow the aphids to obtain a large amount of food in the spring and summer, and prepare enough nutrients for reproduction in the fall. At the same time, the honeydew of the aphids is rich in sugars, which provides abundant food for insects such as ants around them**, thus helping the aphids establish themselves in the ecosystem.

In conclusion, the feeding habits of larvae and adults of aphids are very different, which helps aphids to survive and reproduce.

The subject wanted to ask about aphids.

There is not much difference between the feeding habits of larvae and adults, right? Not much difference.

1. There are generally two kinds of aphids, one is winged aphids and the other is wingless aphids. The larvae of aphids are green or yellow in color, and the adults are usually black, but the larvae of aphids like to swarm on the backs of leaves, young stems, growth points, and flowers of plants.

2. They all like to use needle-like prick mouthparts to suck the sap in the plant, which leads to the destruction of the cells of the plant, the loss of balance in the growth potential and the curling and shrinking of the leaves to the back, and the growth of the heart leaves is stunted, so the feeding habits of the adult larvae are not much different.

Aphids. It is true that larvae and adults feed differently than they do for survival.

1.In spring and summer, most or all of the aphid colonies are female, because the eggs hatched after the winter are mostly female. At this time, the female mother directly produces larvae, and the eggs develop directly in the mother's body, so it is ovoviviparous.

This reproductive cycle continues until the end of the summer. Thus, a single female can produce hundreds of millions of aphids after hatching in the spring. In autumn, the light cycle and temperature changes and the amount of food decreases, causing female aphids to start producing male larvae.

Male aphids are genetically identical to their mothers, except that one sex chromosome is missing. Male and female aphids begin to mate, and females lay eggs. These eggs, after spending the winter, hatch into female aphids with or without wings.

2.Places with a lot of aphids often have ants. Aphids take the phloem of plants.

The sap in the sieve tube is fed, and the plant contains a low concentration of nitrogenous substances that are used to make proteins. As a result, the aphids have to consume a large amount of sap that exceeds their own volume to meet their nutritional needs, and the excess fluid is excreted through the rectum with honeydew. Honeydew from aphids is rich in sugars.

Ants are very fond of honeydew and shuttle among aphids, often patting their backs with their antennae to encourage them to secrete honeydew. Ants are the "herdsmen" of aphids, and they will carefully guard there to protect aphids from ladybugs, ticks.

Wait for the invasion of natural enemies, beware of other ants snatching away aphids. In this way, a symbiotic relationship between ants and aphids is formed.

Aphids provide food for ants, and ants protect aphids and create a good feeding environment for aphids.

When food is insufficient, there is competition between individual aphids, a relationship that is commonly referred toAdversarial relations

In this case, individual aphids compete with each other for limited food resources to get enough nutrients and energy to survive. This competition may result in the death of some aphid individuals who do not have access to enough food, while those who have access to more food have more chances to survive and reproduce, which can have an impact on the genetic makeup of the population.

In addition, there may be a reciprocal relationship and a mutually beneficial symbiotic relationship between aphid dead individuals. For example, some symbiotic bacteria that live in the aphid's body are able to help the aphid digest food, provide nutrients, and protect the aphid from external predators and pathogens. These relationships can also affect the health and survival of the entire aphid population.

Aphids belong to the order Hemiptera, commonly known as greasy insects, honey worms, oil man, etc., and reproduce quickly and have strong adaptability. Aphids have stinging and sucking mouthparts and are toothless. The stinging and sucking mouthparts harm young shoots, young leaves, and flower buds, and the excreted feces are the source of mold disease, inhibiting growth, spreading viruses, and subsequently attracting ants to harm the fruits.

The main characteristics of aphids are: (1) The insects are small and easy to spread.

Aphids are small and soft, the size of a needle, and they are very easy to spread, and some will enter the room through ventilation, and spread from the center plant that occurs first to the surrounding area, forming the center plant first.

2) Fast reproduction.

5 days after the aphid is born, it can give birth to 4-5 small aphids in parthenogenesis, and the generation is 4-5 days, and the reproduction rate is extremely fast.

3) Piercing and sucking mouthparts.

The mouthparts are thin needles and tubes, which will prick the tender shoots, stems and leaves of the plant, and suck the sap of the plant. Prevention and control methods: (1) agricultural and physical prevention and control.

Carefully clear the garden in winter, eradicate weeds in time in spring, spray pesticides to eliminate aphids on overwintering hosts, and reduce the source of insects.

Aphids like yellow, and can be booby-trapped with yellow sticky insect plates; The silver-gray color has a repellent effect on aphids and can be used in facility vineyards.

2) Biological control.

Protect and use natural enemies, such as predatory ladybugs, lacewings, spiders, aphid wasps, insectivorous bugs, etc.

3) Drug prevention and treatment.

It can be sprayed alternately with imidacloprid and pyrethroid pesticides.

d Abiotic factors refer to the abiotic part of the living environment, abiotic factors mainly include sunlight, air, water, soil, temperature, etc., which all affect the growth, development and distribution of organisms.

Some species of aphids have unique and complex reproductive adaptations, while others are relatively simple. These adaptations include sexual and asexual reproduction, laying eggs or producing larvae directly (ovoviviparous), and switching between woody and herbaceous plants at different times of the year.