can increase disease incidence with up to 250% Quarantine measures are in place, including a five-year ban on using a field for potato cropping after…
can temporarily be found outside the leaf mines or fruit. Pupation takes place in the soil or on the surface of a leaf, in a curled leaf or in a mine.…
aphids lay eggs that overwinter. In greenhouses reproduction also takes place by parthenogenesis, with unfertilized viviparous females continuing to…
although pupae can also be found on leaves, in flowers or in other sheltered places. The prepupal and pupal instars can be recognized by their…
pupation. Although pupation sometimes occurs in the crop, it usually takes place on the surface of the ground in a loosely spun cocoon, consisting of…
processes the following categories of data: Name Address Position Date of birth Place of birth Chamber of Commerce number Marketing and communication…
results in the transfer of enough pollen for pollination. Fruit setting takes place once a flower has been pollinated. The flower needs to have been…
structures, tools and machinery. Primary infection is either seed-borne or takes place as infection of the roots at the root tip, or in small wounds,…
as ‘crawlers’. They are highly active in their search for a new feeding place and are capable of moving a reasonable distance over the plant. The male
feed on mealybug nymphs and adults. Pupal stage: Larvae pupate in various places, on any convenient stalk or on the underside of leaves or on even…
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