• Gooseberry

  white varieties. The wild berries are smaller than cultivated kinds, but do have a nice flavour. Nowadays, gooseberries are produced both on a commercial

• Pollination checklist tomato

  flowers must have bite marks. The closed flowers provide a precise picture of the situation. Flowers that are open for longer than one day have between one [...] setting takes place once a flower has been pollinated. The flower needs to have been pollinated before it closes. Depending on the conditions, a flower will

• House fly

  General Houseflies are a well-known pest of farm and home. Believed to have originated in central Asia, the insect expanded its range worldwide long ago [...] or over three weeks later at low temperatures (around 15°C). Adult flies have an average life span of 15–25 days, but can live up to two months in the

• Tarnished plant bug

  yellow markings. Adults that have overwintered are typically darker than summer adults. Regardless of colour, all lygus bugs have a light-coloured “V” shape

• Northern Corn Rootworm

  emerge to begin feeding on corn roots. Certain populations of this species have evolved a resistance to crop rotation through prolonged diapause; the eggs [...] insects are at a disadvantage under continuous corn cultivation because they have effectively half the reproductive rate of their univoltine counterparts.

• Cyclamen mite

  Damaged strawberry leaves are wrinkled and irregularly folded. Affected plants have an unnaturally dense appearance because the petioles remain short. Severely [...] are wide. Both ends are equally rounded. The larvae are opaque white and have only three pairs of legs. They develop into the resting stage (pharate nymph)

• A life-long passion for predatory mites

  October 21, 2024

  grower’s IPM biocontrol system,’ Dr Groot adds. ‘The sachets have been a huge success, and we have managed to prolong the duration of their efficacy. It’s all [...] shares that he is passionate about nature and especially predatory mites . ‘I have been crazy about biology and living creatures all my life. As a child I would [...] happened on my path when I studied biology at the University of Amsterdam. They have fascinated me ever since and led me to my present position at Koppert.’

• Effective thrips control with predatory mites

  Phytoseiulus persimilis . Over the years, we have further specialized in producing a big range of natural enemies and have several patents to our name. Our stability [...] and colder temperatures and can handle high humidity. The predatory mites have a somewhat higher sensitivity to chemical pesticides. Transeius montdorensis

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• Entonem keeps young orchids free from fungus gnats

  preventive policy. ‘We have set a very high standard,’ say Van de Wel, Veldhuijs, and Mulder. ‘Our dosages and introductions have therefore always been [...] examines the action of the nematodes under a microscope. First when they have just come out of the packaging and later after spraying. Dennis van der Wel