At what temperatures do aphids die

Where aphids hibernate


17/10/2005 [#] The garden newsletter: An overview of the garden week.

Many aphids have different host plants in winter than in summer: In winter they often seek shelter on trees. There the first lice find food on the young shoots in spring. In summer they switch from the overpopulated trees to annual plants. These offer optimal conditions for the mass multiplication of the sucking pests.

The Black bean louse overwinters on ephemera, viburnum and pipe bush: in summer it switches to beans, dahlias, clematis and nasturtiums.

The young heart leaves of the lettuce are made from the Currant aphid estimated. In winter it lives on currant bushes. But now there are many types of lettuce that can fight off this aphid.

In dry, warm summer months, the Poplar gall louse attack the roots of various salads. It survives the winter preferably on black poplars.

Gorse and laburnum are reliable winter quarters for them Pea aphid: She has fun on many species of pea butterflies in summer.

This survives on pastures Giersch aphid and starts her campaign from there in spring on carrots, parsley and other umbelliferous plants.

It gets annoying Mealy cabbage aphid in summer in warm and dry weather. It sleeps the winter as an egg on crop residues.

The Green stripes and the spotted potatoes prefer tomatoes, cucumber and lettuce. The infestation is particularly noticeable in late summer and in small greenhouses. These louse species are protected from beneficial insects by ants.

Even aquatic plants suffer severely from aphid infestation in some years: Plant protection measures are not allowed on bodies of water. The pests often overwinter on prunus species such as sloe and cherry.

An aphid infestation can be contained in the following summer through timely control of the trees mentioned and through control measures as soon as egg clutches are discovered: By pruning in the spring, many 'nests' are removed. A shoot spray in the spring with rapeseed oil-containing agents [such as Micula, pest-free natures] leads to the 'suffocation' of the eggs under the air-impermeable coating.


See also:
- Aphids: downside in the merry month of May
- Earwigs: beneficial or pest?
- Ants in the house and garden

 
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