cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with…
yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order to gain an adequate intake of protein, mealybugs…
species. The large blackberry aphid is widely distributed in Europe and also established in New Zealand. It only feeds on cultivated and wild…
) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the United States and South America. The…
presence in the crop. The wingless adult stage of the greenhouse potato aphid is rather squat, of medium size (1.8 - 3.0 mm long) and oval in shape.…
sulcatus, is a pest in many ornamental crops (e.g. rhododendron, cyclamen and azalea), as well as in strawberries and other fruit crops in both…
apple orchard in early spring. ‘Although the weather has been unpredictable these last few years, we make sure to place our order for the hives in…
cause problems in agriculture and horticulture. Thrips are small insects (0.5-14 mm), with the largest species found in the tropics. In temperate…
processionary caterpillar with Entonem Wolterinck BV in Beltrum, the Netherlands, is a specialist in tree care and weed control and works on behalf of…
with nature, that is the guiding principle in everything we do! Pioneering is not new to Koppert. In fact, it’s in our DNA. Fifty years ago our…
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