What to do if aphids appear on cucumbers?

.

Aphids breed at a very high rate. For a day the colony is replenished with two hundred new insects. In nature there are about 4000 species of aphids, in the garden or in the garden are distributed several of them:

  • aphid green;
  • black;
  • cherry;
  • goblet;
  • rozannaya.

This insect pest infects all cultures, except for coniferous plants, and especially aphids like to paw at wicker plants. Cucumbers are most often affected by black aphids. A lot of these small insects are taken to the young shoots of a cucumber whip and begin to suck the juice from the plant.

When aphids are affected, the leaves of the plant begin to twist and turn yellow, and then dry and fall off. The distance between adjacent leaves begins to contract. The growth bud buddies and the whip ceases to develop. On the top leaves there will be noticeable spots of the sweet pada, which aphids secrete in the process of vital activity.

Read also:We fight with aphids on cherry

Removal of lesions

Aphids accumulate on the upper leaves of the plant, if there are a lot of insects, trim the young shoots and burn them. So you get rid of a lot of aphids, and new side shoots will go from the internode. After pruning the cucumber, it is possible to carry out chemical treatment.

Aphids never settle on the lower leaves of the plant and its lignified branches, since this pest can not bite rough tissue. Therefore, to combat aphids, surface treatments are sufficient.

Treatment with insecticides and bioactive substances

To combat aphids, the drug "Aktara" is a good choice. It is a contact insecticide that begins to function two hours after treatment. "Aktara" is a product of prolonged action. Repeated treatment of the plant will need to be done in two weeks.

Insecticide "Aktara" is very toxic to bees, so treatment can be carried out only in the evening, when the bees completed the evening flight.

In order to protect pollinator insects, biological preparations can be used instead of chemical insecticides, for example, "Fitoverm". This is also an insecticide of prolonged action. The drug acts on the intestine of the pest. After two hours of action, aphids stop eating, and after another three hours - they die.

"Fitoverm" is absolutely safe for bees and other insect pollinators, therefore treatment with a biological preparation can be carried out at any time of the day. Do not treat the plant at noon, otherwise "Fitoverm" will quickly evaporate.

Review of the best varieties of self-pollinating cucumbers

Review of the best varieties of self-pollinating cucumbersCucumbers

The content of the article: Varieties of self-pollinated varieties of cucumbers Self-polishing cucumbers for open ground Self-pollinating cucumbers for a greenhouse Universal self-pollinated cuc...

Read More
Cucumbers in apple juice for the winter: recipes at home

Cucumbers in apple juice for the winter: recipes at homeCucumbers

The content of the article: About the cucumber! And only good! Apple juice - a cocktail of vitamins More details about conservation Cucumbers with mint in apple juice with sterilization Cucumber...

Read More
Cucumber juice: useful tips and recipes for canning for the winter

Cucumber juice: useful tips and recipes for canning for the winterCucumbers

The content of the article: General information about cucumber and cucumber juice Juice from cucumbers for the winter The recipe for cucumber - tomato juice Frozen juice from cucumbers A little ...

Read More