2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
The cruciferous flea is a pest that infects the leaves of cabbage, radish, radish, turnip and other plants belonging to the numerous cabbage family. Insects gnaw out small through sores on the leaves, and the latter begin to dry out quickly. This can contribute to the early death of plants, especially if the seedlings were recently planted or the first shoots have already appeared. To avoid such a nuisance, you need to get rid of such harmful guests in a timely manner
About the cruciferous flea
Cruciferous flea beetles are leaf-eating parasites, which are medium-sized jumping beetles (only 2 - 3 mm long) with a dark color. They hibernate in gardens in the upper soil layer under plant debris, on forest edges under fallen leaves, in ditches, cracks in greenhouse foundations made of wood, and in many other places. Waking up from sleep in early spring, at first they feed on various weeds, but as soon as seedlings are planted or seedlings of cultivated plants appear, the pests will immediately get over them. Subsequently, parasites lay eggs on the soil surface near radishes, turnips, radishes and other crops, from which larvae emerge a little later, living and pupating in the soil. In July, a new generation of beetles that are no longer so harmful appears, which do not bring significant harm to plants. Individuals of the spring generation cause maximum harm to vegetable crops, because it is they who damage the seedlings. It should be noted that they are most dangerous in hot and dry springs.
How to defeat a pest
First of all, for protective purposes, it is necessary to destroy all weeds belonging to the numerous cabbage family (this is a shepherd's purse, yarutka, wild radish, rape, etc.).
The land in those places where cruciferous fleas operated in the summer is well dug up in the fall so that these parasites, hiding in the ground for wintering, find themselves on its surface and find their death from the cold.
Sowing seeds and planting seedlings is best done earlier. Radish with turnips, on the contrary, are planted at a later date, when the number of cruciferous flea beetles slowly begins to decrease. In order for the plants to take root and strengthen well, it is recommended to cover the beds with lutrasil, light film or other non-woven material. Regular feeding of crops with fertilizers will help to reduce the harmfulness of beetles and at the same time to accelerate the growth of plants.
Pollination with a mixture of tobacco dust with ash (1: 1) or with fluffy lime (1: 1) will be of great benefit. The mixture (or prepared wood ash) should not contain large particles, that is, it must be thoroughly sieved. Plants, so that the ash sticks to them better, should be slightly sprinkled with water. The mixture should be applied through a double layer of nylon stocking - then it will be able to stick to the wetted leaves in a thin layer and it will be good to scare away intruders for some time. Periodically, such pollination should be repeated three to five times (interval - 4 - 5 days).
Pollination is also encouraged with a powder prepared from tansy (or wild mountain ash). Tansy flowers, collected in baskets, must first be thoroughly dried in the shade in the air, and then crushed into powder. Pollination with celandine powder also helps, but it is important not to forget that celandine is an extremely poisonous plant. Also, a solution is prepared from celandine, which is subsequently sprayed on cultures: 2 matchboxes of powder (20 g), filled with 1 liter of water, insist for 12 hours. For spraying, a liter of solution is taken for every 2 square meters of land (for this procedure, a spray bottle, a special sprayer or a wide flat brush is used).
You can spray the vegetation with a solution of table vinegar (dilute a tablespoon of 70% vinegar in 10 liters of water). It is enough to carry out such spraying once. Strange as it may sound, but a dog flea shampoo is also capable of helping in the fight against cruciferous fleas - one or two caps of this miracle remedy are diluted in a bucket of water.
Sticky baits can be made from cellophane or canvas: for this, the material is pulled over a metal or wooden frame, previously covered with a rather sticky composition of petroleum jelly, resin or hot bitumen. In the daytime, this frame is carried out several times over clusters of fleas on vegetation, and insects quickly adhere to it. You can also place glue traps between the plants.
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