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extensively in North and South America and Europe where it has caused severe yield losses in many berry crops, cherries and grapes. Life cycle and…
always pink or red. They appear matt, never glossy. Winged individuals have a brown-black head and thorax and a reddish abdomen. There is a dark brown…
The first nymphal stage is a transparent white colour and about 0.1 mm long. They usually develop to the 2nd stage within a day. All life stages look…
depends on the host plant and can vary from 2 to 4.5 mm. The young nymphs are white to yellowish, more oval in form and with a raised H-pattern on the…
smaller leaf size and suppressed bud growth leading to a reduction in the number of buds and dwarfed buds. This damage can reduce yield and quality.…
types of fruit and forest trees, and ornamental shrubs and trees. Damage is mostly caused by sap depletion; the shoots dry up and die, and defoliation…
instars, a pupal instar and the adult beetle. The adult beetle is 25 to 30 mm long, with a dark head, black pronotum covered with short hairs, and…
malvae rogersii Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses,…
black currant and also red current. It is widespread throughout Europe and also present in the Russian Far East and North America. Life cycle and…
yellow and embedded in a dense web. Adult flies are long and slender and have a dark brown head with short antennae. The thorax is brownish-yellow and…
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