• Tomato leaf miner

  bacteria enter the plant tissue via the feeding spots. Life cycle and appearance of Tomato leaf miner The life cycle of a leaf miner has the following stages: [...] occurs in greenhouses. The tomato leaf miner has been found in greenhouses for decades, but has become a common pest since the 1960’s, particularly in sweet [...] symptoms Leaf miners cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to

• Corporate Brochure Koppert 2022

  solutions for the for local problems. Growers’ feedback is horticultural market, we now aim always welcomed, and we have come to reduce the need for chemical [...] products and greater success for growers. 22 The change in focus in which we give full attention to finding effective solutions for specific crops worldwide [...] programmes for farmers who spot. We work for growers while further have little or limited access to skills and building our global networks for knowledge

• Olive scale

  settle mostly along the main veins on the lower sides of mature leaves. Many young females migrate to twigs and branches later and remain there for the rest [...] debilitate the plant and can cause wilting, desiccation of tissues and dieback. Life cycle and appearance of Olive scale Young females are oval, 3-6 mm long and

• Cherry fruit fly

  General The cherry fruit fly ( Rhagoletis cerasi ) is the most important sweet cherries pest in Europe. In addition, it also attacks a few other species [...] often rot, are unmarketable as fresh fruit and may be rejected by processors. Life cycle and appearance of Cherry fruit fly The adult cherry fruit fly is 3 [...] after 1-2 weeks and the larvae feed on the flesh of the developing fruit for about four weeks. Around harvest time, the mature larvae leave the fruit to

• Grower Koen - Embracing biological crop protection in agriculture

  challenges, but Koen embraced the change and emphasizes that the effectiveness of products is still the most important for him, regardless of whether they [...] to prepare for this new phase of sustainable agriculture. With his farm as a living example, Koen is an inspiration for others striving for more sustainable [...] reduction of chemical methods paves the way for organic alternatives that can complement traditional farming practices. For him, it is clear that chemical-free

• Leek moth

  garlic and chives. Damage symptoms The vegetative and flowering stages are most widely affected, but the seedling stage is sometimes affected in nurseries [...] the plant. Severe damage also occurs on inflorescences of plants cultivated for seed production where serious seed loss can occur. On leeks, larvae mine the [...] the fall of the flowers where moth larvae have eaten the floral peduncles. Life cycle and appearance of Leek moth The leek moth ( Acrolepiopsis assectella

• Blueberry aphid

  virus disease can cause severe yield loss. Life cycle and appearance of Blueberry aphid Aphids have a complex life cycle, with both winged and wingless forms [...] General The blueberry aphid, Ericaphis fimbriata or Ericaphis scammelli , is most likely of North American origin and was probably introduced into Europe with [...] September and October and the sexual females lay eggs on blueberry bushes for overwintering.

• Banana moth

  yucca, for example, the bark is flaccid to the touch and can be dented with the finger in the affected area. In cacti, yuccas and dracaena, for example [...] as a result. This can exacerbate the damage and produce unpleasant odours. Life cycle and appearance of Banana moth Adults of the banana moth ( Opogona sacchari [...] yellowish brown. There are six or seven larval stages. The larvae are at most about 3.5 cm long, are highly mobile, photophobic and gluttonous feeders

• Common cockchafer

  of trees, mainly on oak, maple, beech and plum. Life cycle and appearance of Common cockchafer The life cycle of the common cockchafer ( Melolontha melolontha [...] ae. Damage symptoms The common cockchafer ( Melolontha melolontha ) does most of its damage in the larval stage, when it feeds on roots of grasses and [...] and long, hairy, well developed yellow legs. It takes three or four years for the larvae to fully develop. The grubs are 10 to 20 mm in the first autumn

• Broad mite

  visible several weeks after the mites have been removed. Life cycle and appearance of Broad mite The life cycle of tarsonemid mites has the following stages: [...] different to the others and not used for walking. After moulting to the third larval stage the larvae stay in their cuticle for one or two days and then emerge [...] distortion of the above-ground growth of the plant. The mites show a preference for young, developing plant tissue, like the growing tips, young leaves and flower