Aphids


There are about 850 different aphid species in Central Europe. The aphid feeds on plant juices and almost every plant can be affected by it. Plant juice is rich in carbohydrates, but the aphid only uses the amino acids it contains and excretes the sugar as honeydew. It serves bees, wasps and ants as food, so some aphid species are not considered pests by beekeepers. However, the high-energy honeydew can also lead to fungal attack. Aphids not only weaken the plant, but also transmit viruses that can lead to the death of the plant.

Aphids on shoot

Contents: Fight aphids

  • Reproduction of aphids
  • Fight aphids
  • Profile: aphids

Reproduction of aphids

Aphids both get through sexual conception and oviposition as well Parthenogenesis and live birth. Mice production means that they are able to produce offspring from unfertilized eggs during the summer months. Some generations are born with wings that, in contrast, reproduce through fertilization and oviposition.

The flying aphids allow the crossing of different populations and a rapid spread even over long distances. Particularly sophisticated is the ability to spontaneously wing winged offspring when an aphid population is threatened by natural predators.

Fight aphids

Aphids occur in masses.

aphids

Since aphids breed rapidly, you should regularly check your plants for infestation and react immediately if you find lice. Even better in the fight against aphids are preventive measures, so they do not even settle.

The best remedies for attack and prevention are natural predatorssuch as the ladybug and its larvae, various fly larvae, ground beetles, soft beetles, spiders and birds. Ladybug larvae are even bred specifically for this purpose and can be purchased commercially.

As a home remedy, soapy solutions and nettle slush have also proven to be very easy to apply yourself and can use both preventative and combating.

Profile: aphids

Description: Aphids are a few millimeters large plant lice, which tap plants of all kinds with their Stechrüssel; there are both winged and non-winged specimens of each variety

Food Source: Plant juices, can affect almost every plant

symptoms: Leaf rolls, discoloration, crippling, excrete honeydew, which attracts soot thymes and ants, transmit viral diseases

Prevention: Settlement of predators such as ladybugs and their larvae, hoverfly larvae, lacewings and their larvae, parasitic wasp larvae, aphid flies, caterpillars, predator bugs, ground beetles, soft beetles, firefly larvae, earwigs, spiders and birds. Avoid over-fertilization, water plants regularly, prefer wind-open layers

fighting: Multiple hard-water jet spraying, removal of infested shoots, treatment with nettle, oak leaf or oak bark; in case of acute infestation with conventional pesticides (pyrethrum preparations)


Video Board: Life cycle of aphids