• Caterpillars

  night are usually inconspicuously brownish are greyish. Adult butterflies do not damage crops. Most of them feed on nectar. In contrast, the caterpillars [...] plant tissue. Many species cause damage to crops. The most harmful caterpillars that occur in greenhouses belong to the Noctuidae (the noctuid or owl moths) [...] name ‘leafroller’ refers to the fact that the caterpillars often live in rolled-up leaves. Although some species are restricted to a single crop, most are

• Aphids

  insects: the super- family Aphidoidea, belonging to the order Hemiptera . The aphids discussed here all belong to the family Aphididae, a family containing many [...] types of aphid species: those that change to other host plants in the winter, and those species that do not. Species that alternate between host plants [...] colour forms, or resistance to pesticides, remain unchanged and unsorted. The young aphids are born as developed nymphs and begin to feed instantly on plant

• Black leg of seedlings

  absence of plants. Many species are entirely saprophytic, so these do not harm plants. How to prevent Black leg of seedlings Use resistant cultivars or graft [...] Black leg of seedlings Pythium belongs to the Oomycetes, a separate group of microorganisms and is therefore not a real fungus. It survives as oospores [...] spores with flagellae, which enable the spores to move through water. The zoospores are chemically drawn to the growing roots of young plants and move towards

• Damping-off

  absence of plants. Many species are entirely saprophytic, so these do not harm plants. How to prevent Damping-off Use resistant cultivars or graft on tolerant [...] appearance of Damping-off Pythium belongs to the Oomycetes, a separate group of microorganisms and is therefore not a real fungus. It survives as oospores [...] spores with flagellae, which enable the spores to move through water. The zoospores are chemically drawn to the growing roots of young plants and move towards

• Swirski-Mite Plus

  locations in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging the [...] larvae of various thrips species and eggs and larvae of whitefly . Crops Do not use in tomato. Mode of action Predatory mites multiply in the sachet and [...] between 20 and 32°C (68 and 90°F). It is not effective at temperatures below 18°C (64°F). A. swirskii is sensitive to relative humidity below 60%. Combined

• Phytoseiulus persimilis

  only feed on smaller prey stages. The larvae do not eat. They develop quickly to protonymph and then start to feed on spider mites. The quantity of prey [...] larvae have three pairs of legs. They do not feed and remain inactive unless disturbed. Once the larva has moulted to the protonymph (with four pairs of legs) [...] s between 13 and 27°C (55 and 81°F) and not effective above 30°C/86°F. Phytoseiulus persimilis is sensitive to relative humidity below 70%. Phytoseiulus

• Crop Protection

  crop protection products do not require a pre-harvest interval (PHI) due to the inherent safety. These agents do not pose risks to human health or the environment [...] t interval – Safe to apply up to harvest with no waiting period. Low resistance risk – Pests typically do not develop resistance to natural enemies. Supports [...] long-lasting pest management solutions. Pests typically do not develop resistance to natural enemies compared to chemical pesticides. Soil health and biodiversity

• Swirski Ulti-Mite

  locations in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging the [...] larvae of various thrips species and eggs and larvae of whitefly . Crops Do not use in tomato. Mode of action Predatory mites multiply in the sachet and [...] between 20 and 32°C (68 and 90°F). It is not effective at temperatures below 18°C/64°F. Amblyseius swirskii is sensitive to relative humidity below 60%. Combined

• Amazone Plants continues the path of organic cultivation

  that the plants are in the greenhouse, it is not easy for the employees to access the plants, for example to scout them. Infestations may therefore occur [...] better. Although our buyers do not always ask explicitly for a completely clean product, this is the path we will continue to take.’ The company is almost [...] owned by Lex Scheffers and Fred van Zijl did not immediately have the wind at its back but the business started to take off in 2015. In 2019, the tomato nursery

• Woolly apple aphid

  tree to tree. Sometimes a few winged aphids are produced in summer. Winged egg-laying females are produced in early autumn but their eggs do not develop [...] and appearance of Woolly apple aphid In contrast to other aphids , the life cycle and survival from year to year of the woolly aphid depends entirely on wingless [...] a few wingless egg-laying females are produced in autumn but their eggs do not develop further. Adult viviparous (wingless) females of the woolly aphid