Butterfly wings … or how to protect cabbage from pests
If you ask how many types of cabbage pests are, then you can answer in one word – a lot. To list all the “brothers of our least” who want to share the harvest, it makes no sense. Let’s focus on the most common.
Cruciferous fleas are very dangerous for seedlings. As the name implies, they can start not only on cabbage but also on other representatives of this family. They are especially dangerous for large vegetable growers. In small areas are less common. They appear in early spring, so colza and rapeseed become the first victim, a little later they move to seedlings of cabbage. What are they like? A small bug, up to 3 mm in length, looks like a flea in appearance. It also moves in leaps. It settles on the lower leaves, making peculiar moves. If there are a lot of them, then the leaves begin to curl up and dry.
Another common pest is cabbage fly. There are two varieties of it: spring and summer. But this is one view. They just come out of hibernation early in April, immediately lay their eggs. They do this in the soil near the roots of plants, it is clear that they prefer cruciferous, probably very tasty. The hatched larva immediately bites into the root and begins active activity there, the result of which can often be the death of the plant. This spring larva closer to mid-summer will give new offspring, the very thing that is considered a summer fly. So she then lays eggs under the roots of cabbage and causes significant damage to an adult plant. This generation will go in winter. Well, in the spring, everything will happen again first.
Next up is the white butterfly. Well, we know her very well. It is she who lays eggs on cabbage, which turn into yellow-green caterpillars, and which, right before the eyes, destroy the crop. Parasites eat the juiciest and delicious parts of the leaf, leaving only streaks.
There is another butterfly, she called Repnev white butterfly, like a cabbage white butterfly, but a little smaller 4-5 cm, caterpillars in her green, with a velvety surface, they are covered with short hairs.
Met on heads of brown-brown larvae – this is the offspring of cabbage scoops. It also develops in stages, like the cabbage fly. The first batch of eggs is laid from mid-May to mid-June. A new generation will lay eggs in July – September. Gluttony overtook all competitors. It can be cooked on radishes, beets, pumpkins, and even peas. It is because of this pest that whole tunnels were made in heads of cabbage and dark green excrement was left.
There is also cabbage moth and cabbage aphid. The first is a small butterfly up to 2 cm, brownish-brown. The larvae are green, small, they can use to move the threads that they produce inside themselves. They bite into the pulp of the sheet, while not damaging the top layer, it turns out a window tightened with a film. Cabbage aphid is a small sucking insect. She robs plants of juices. Lives in large colonies. The leaves turn red first, then fade. Persons are active and dangerous in the middle of summer.
To combat these pests, prevention is very important. All the same general rules that no one has yet canceled: not to leave plant debris, destroy weeds, deep autumn digging – help get rid of some of the individuals that went for wintering. Important! Planting cabbage should travel around the site, returning to the same place only after 5-6 years. This helps protect against cruciferous fleas and cabbage flies.
During the vegetative period, it is necessary to use spraying. It is not necessary to resort to chemicals. Infusions that can help against pests can be prepared by yourself. These are plants with the so-called grass bitterness: wormwood, bitter capsicum, burdock. It is also possible to spray tobacco dust and wood ash, this gives a positive effect from gnawing larvae.
An interesting method, it is successfully used by farmers specializing in the cultivation of environmentally friendly products. The larvae of cabbage pests have their own natural enemy – the apantele rider. He lays eggs in the bodies of caterpillars. Further, his offspring uses the host’s body as a food base, destroying it from the inside. Therefore, many farms in Europe even specially bred it. There is an experience in repelling pests with calendula, which is planted between rows of cabbage.