• Tobacco whitefly

  sap from the plant leaves and secreting honeydew. This can have the following consequences: If the population is very large, feeding on plant sap can affect [...] . The larvae inject enzymes into the plant that alter their normal physiological processes. In some host plants, this can cause damage, including irregular [...] whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess is excreted

• Capsanem

  kills the pest within a few hours to days after infection. Visual effect Infected pests are generally difficult to find. Infected foliar pests simply fall [...] insect pests in protected and outdoor crops. It is effective in a wide temperature range. Capsanem can also be applied as foliar treatment. Pests Caterpillars [...] ciliata ) Mode of action The nematodes enter the pest and release symbiotic bacteria into the pest's body cavity. These bacteria convert the host tissue

• Impatiens thrips

  trade in foliage plants. Impatiens thrips (Echinothrips americanus) has a wide range of hosts. In addition to many ornamental plants it also attacks sweet [...] present on weeds in greenhouses. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues and sucking out their contents [...] of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become serious the leaves

• Potato aphid

  and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed [...] early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low protein content [...] Solanaceae (particularly potato), but has also been identified on more than 200 plant species from more than 20 families. Various vegetable and ornamental crops

• False spider mites

  leaf blade. The damage often leads to premature ageing of the plant. In some crops, plants can become misshapen, presumably because the mites secrete a [...] Tenuipalpidae have a worldwide distribution and can be found on many cultivated plants. Several species have been reported, especially by growers of greenhouse [...] flat compared to other mites. Most species that cause damage to cultivated plants belong to the genera Brevipalpus and Tenuipalpus . The most common species

• Leek moth

  stalk or the inflorescence of the host plant. Feeding on the leaf tissue by the caterpillars causes a reduction in plant growth; if larvae are numerous, weakening [...] weakening or withering of the plant can occur. On old leaves, open galleries can be seen which decrease the economic value of the plant. Severe damage also occurs [...] occurs on inflorescences of plants cultivated for seed production where serious seed loss can occur. On leeks, larvae mine the central leaves which have

• Click beetles

  the roots of many plants. Damage symptoms The click beetles feed on the roots and bore into the base of plants. This can cause the plants to wilt and die [...] die. Damage is more severe in young plants. Life cycle and appearance of Click beetles Adult Agriotis sp. are 6-10 mm long and yellowish brown to black. The

• At Koppert, every day is Earth Day

  April 26, 2021

  pheromones, has led to countless solutions that have improved plant resilience to the point that pests and diseases hardly stand a chance. Using a holistic approach [...] approach, solutions are developed for all the relevant elements of plant production and protection. Koppert is at the forefront of a whole new way of thinking [...] actively invest in continuous R&D to bring innovative biological solutions for pests and diseases to growers. Our expertise has become an integral part of a global

• Garden chafer

  move into corms, rhizomes and stem bases of plants. Larvae can also feed above ground within stems of plants and on strawberry fruits lying on the ground [...] are polyphagous and feed on a wide variety of plant species. High populations of larvae can destroy plants under field conditions. Established crops are [...] are more resistant to damage than young plants or recently planted cuttings. The beetles are only active at night, taking round bites out of the leaves,

• Combating Strawberry Aphids with Aphiscout

  March 15, 2019

  matricariae Ervipar Aphidius ervi Use APHISCOUT to combat aphid pests in Strawberries. Aphid pests are a major threat to protected strawberry production because [...] the cylinder horizontally by winding the label around a crop wire, plant cane or plant stem, and sticking back onto itself. Progressive strategy Each parasitic [...] because of their high reproductive potential and their ability to transmit plant virus diseases. Aphids also excrete unwanted sap sugars (honeydew) on the