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Chafer Control Now is the time!
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September and October are the best months to treat for chafer infestation
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Chafer grubs are the larvae of the Chafer Beetle. There are six species in the UK; the Welsh Chafer, Summer Chafer, Brown Chafer, Cock Chafer, Garden Chafer and Rose Chafer, the most familiar being the Cock Chafer, which becomes the May bug, a large beetle that can be heard as a low droning noise on pleasant spring evenings. Problems on sports surfaces and lawns are caused by just two species: the Garden Chafer and the Welsh Chafer.
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156 I PC AUGUST/SEPTEMBER 2014
The grubs feed on the roots of grasses and other plants, their presence can be detected by the yellowing patches that it creates in turf. Chafer grubs can be found in the soil under the loose turf. They live within the soil for up to 3-4 years going through various instars as they develop. Significant damage to turf can be done by predators, such as starlings, rooks, crows, jackdaws, magpies, foxes and badgers that make the most of an abundant high protein feed lying just beneath the surface.
Identification
They have stout white bodies curved in a C shape, light brown heads, with three pairs of legs and darker patches at the base of the abdomen. They are bigger than the adult beetles although their size varies according to species, 8-35mm; typically, the Garden Chafer and Welsh Chafer are between 10mm and 15mm long. The head and thorax are metallic blue-green on the Garden Chafer and black on the Welsh Chafer. The grubs eat and damage the roots which, eventually, kills the plant. The first symptoms are yellowing patches that eventually turn brown, particularly in dry weather. These areas are then pecked at or dug up by predators. In severe infestations, the turf can be pulled back to reveal as many as 100 grubs per square metre.
Methods Of Control Cultural Control
As with most problems, the symptoms can be relieved more effectively when symptoms are
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