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2. Aphids are carriers of viral plant diseases
Aphids (Aphidoidea) are one of the most common types of green plant pests. The life form of aphids is winged and wingless, performing different functions in the life of insects. The body length of aphids is from 0.3-0.8, and of some representatives of 2-5 mm. The body shape of the aphid is oblong, ovoid, ellipsoidal, hemispherical. The color scheme of the integument of the body of aphids varies from pale green to green, yellow-green, black.
The body of the aphid is covered with hairs, tubercles, fluff, outgrowths. A small trapezoidal head is decorated with 2 red, brown or black beads of multi-faceted eyes. On the forehead of the aphid there are long antennae - the organs of touch and hearing. The oral apparatus is represented by a unique proboscis, capable, with its diminutiveness, of piercing the surface of leaves or young shoots and sucking out plant juices. Long slender legs of the aphid provide movement by walking and jumping.
Aphid danger level
Despite their miniature size, aphids are malicious pests. Each female gives 17 generations over the summer, giving birth to 100-300 new individuals every 2 weeks. The autumn generation of aphids takes on wings and populates new areas. In the taxonomy, there are about 4000 species and almost all of them are carriers of viral plant diseases, the fight against which is practically absent in the plant world.
What crops are affected by aphids?
Aphids inhabit all vegetable, fruit and berry crops and flower beds. Most often, weakened or overfed plants are affected, the loose tissues of which are easy to pierce to obtain nutritious juices.
External signs of plant damage by aphids
The first sign of aphids is the presence of ants on the plant. The ants settle the aphids and feed on the sweetish liquid secreted by them. In damaged plants, young leaves curl at the ends of stems and shoots. Over time, well-developed old leaves become covered with a sticky bloom, which serves as a breeding ground for fungal and viral diseases. Some plants undergo leaf deformation in the form of gall blisters of various colors, in which pests settle.
Aphid control methods
Methods for controlling aphids, like other pests, are subdivided into agrotechnical, chemical, biological, and folk methods.
The use of chemical methods of protecting plants from pests in small areas of private property is impractical and hazardous to health.
From biological products that do not harm human and animal health, the following are recommended: Fitoverm, Aktofit and other biological products. Aphids are completely destroyed in 1-3 days.
For the continuation of the list of the most dangerous pests, see the next page
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