Representatives of cicadas have a very modest size. In most species, the body length does not exceed 2–10 mm. The color of the body and elytra in various species includes almost the entire color gamut. A distinctive feature of cicadas is strong hind legs, covered with specific teeth. They provide increased jumping ability inherent in this family. If necessary, the circus can easily turn a jump into a flight. Even if you wish, it’s quite difficult to catch her, the process requires considerable patience.
In the afternoon, insects hide on the back of the foliage, under the blade of grass. Active life begins at dusk. The cicadas start eating. Most species prefer plant foods, but there are also predatory varieties. Plant-eating cicadas are quite serious pests for a horticultural, vegetable garden and indoor crops. They do double harm: firstly, they suck the juice from plant tissues. This gradually leads to necrosis of individual sections of the sheet plate and the death of the sheet as a whole. Secondly, up to 10-15% of the circadian population are carriers of incurable viral diseases that lead to the death of plants. Many species of cicadas are polyphages and feed on a wide variety of flora.
There are also species more selectively related to the choice of food. Their names often indicate their taste preferences. For example, the rosacea cicadas feed mainly on roses and rose hips, the larvae of the bindweed cicadas develop on the roots of the bindweed and related plants. The life cycle of a pest consists of several stages. In early summer, females lay eggs in the ground. After a month, larvae appear that suck the plant sap. Not having time to reach the stage of an adult insect, the larvae leave for the winter.
In adverse conditions, they begin to resemble hibernation – diapause. After wintering, the larvae develop within a few weeks, after which, in May-June, they turn into adults (adults). In warm climates, insect development can continue year-round. Indoor crops are rarely affected by this pest, especially if they are indoors. In this case, infection is possible only from non-sterile garden soil.
Also, recently acquired greenhouse plants may become pest carriers. Indoor specimens exposed outdoors to the garden during the warm season are at greater risk. In this case, the cicadas living in the nearest green spaces can naturally get on indoor crops. The chance that they will go unnoticed for a long time is very high.
As a result of feeding the cicadas, yellowish and whitish spots appear on the leaves. Gradually they merge into spots, dry out, change color. A badly affected leaf fades. The defeat of cicadas, as mentioned above, can lead to infection by various viral and bacterial infections. With this development of events, symptoms characteristic of a particular disease will manifest themselves.
Cicadas prefer free space, so plants in pots installed rather crowded will be unattractive for the pest. The maintenance of high air humidity will also be a preventive measure. In addition, the use of horticultural or vegetable land, in which the larvae of cicadas may be located, should be avoided. In the event of a severe defeat, such insecticides as Aktara, Karate Zeon, VDG will become an effective means of control. Double treatment with an interval of two to three weeks will help get rid of the pest and prevent its appearance within a month and a half. When using insecticides, safety precautions must be observed.