• Aphids

  target aphid populations and provide ongoing crop protection throughout the growing season. With Koppert’s biological solutions for aphids, professional growers [...] are born as developed nymphs and begin to feed instantly on plant sap. They grow rapidly and moult four times before becoming adult, with the conspicuous [...] their summer host plant, migrating to their winter host plant in autumn, where they reproduce sexually and lay eggs that overwinter. The summer host plants

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• Green peach aphid

  cucumber and many other greenhouse crops. The aphid may originate from Asia, where its winter-hardy host plant, the peach tree, is native, however it is now [...] making the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew, contaminating fruit and ornamental crops and rendering [...] saliva can induce strong “allergic” reactions such as malformations of the growing tips. Life cycle and appearance of green peach aphid Aphids have a complex

• Downy mildew of Cucurbits

  take up nutrients from the living plant cells. The pathogens continue to grow inside the leaves and after a while new spore-bearing structures are protruding [...] stomata. Because there are more stomata on the underside of the leaf, this is where most fluffy symptoms are found. How to prevent Downey mildew Choose resistant

• Glasshouse potato aphid

  a toxic substance, which leads to deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the [...] born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. When reproduction is sexual, the aphids lay eggs that overwinter

• Pea blight, leaf and pod spot

  medicaginis var. pinodella ) causes foot rot in peas, whereas Ascochyta pisi does occur sometimes at the stem base but is not part of the foot rot syndrome [...] require water for dispersal. How to prevent Pea blight, leaf and pod spot Grow peas in arid regions Use clean seed Use a minimum crop rotation of four years

• Knowing & recognizing

  the growers’ guide to biological crop protection Knowing and recognizing does exactly what it implies. It empowers you with knowledge about the pest’s [...] nts that increase the plant’s resilience to stress and help the plant to grow better and remain healthier. Koppert believes that sharing this knowledge

• Tea spider mite

  General Oligonychus coffeae is most destructive pest in all tea growing areas of India causing considerable yield loss. Damage symptoms Larvae, nymphs [...] Deutonymphs are like protonymphs but they are larger. Males are short lived where as females live for 3 weeks during summer period and couple of months during

• Horiver Drystick

  or sticks at max. 30 cm above the crop and adjust height when plants are growing Do not place traps in-between the plants as parasitic wasps will then also [...] m 2 Notes In contrast to Horiver Wetstick , the glue of Horiver Drystick does not come off on your hands Horiver Drystick traps generally do not catch

• Grapevine powdery mildew

  grapevine pathogens, it does not require free water (such as rain or dew) to infect, making it a persistent threat throughout the entire growing season. Early detection [...] the vineyard. These secondary infections can occur repeatedly during the growing season, leading to an exponential increase in disease pressure between flowering