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Eye-catching pests

27.06.2014 - 13:09 |  Looduskalender
Photo: Arne Ader
Translation: Liis
 
Garden chafer on black medick (Medicago lupulina)
 
Garden chafer    Aiapõrnikas       Phyllopertha horticola
 
 With warm and sunny days we can meet them in quite massive numbers, especially in June-July.
 
The garden chafer is simply eye-catching with its greenish blue metal-shimmering thorax; it is only up to eight millimetres long and the elytra, or protective front wings, are yellowish brown. Legs and underside black-coloured.
 
It is a pest; the chafers feed on the leaves of plants, damaging strawberries, fruit trees, garden roses: on the last-named they chew holes in the leaves as well as flower buds. In June-July they also lay eggs and the C-shaped grubs hatched from these damage the roots of plants already in the soil. Fortunately there is only one generation of them per year.
 

Should there be many of them in the garden and the use of chemical deterrents is not agreeable the beetles can be collected in the morning from the wet leaves of low-growing plants into a glass jar and quickly killed. Wet sheets can be spread under apple trees in daytime and the trees shaken hard – the beetles fall down from the tree quite easily


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