• Impatiens thrips

  lives exclusively on the leaves and is often present on weeds in greenhouses. Damage symptoms Thrips cause damage to plants by piercing the cells of the [...] able to spread as a consequence of the trade in foliage plants. Impatiens thrips (Echinothrips americanus) has a wide range of hosts. In addition to many [...] Impatiens thrips (Echinothrips americanus) is an increasing problem in greenhouse cultivation, having spread to many countries within the last 30 years.

• Operation Mealybug

  fruit are concerned, these often drop off; Plant sap is low in proteins and rich in sugars. In order to gain an adequate intake of protein, mealybugs must [...] equipped to seek out their prey, but are not guaranteed to remain in the same spot where they were applied. Koppert therefore now supplies them in the larval [...] photosynthesis in the leaves also reduces flower and fruit production; In ornamental crops, the mere presence of mealybugs is sufficient to render the product

• Pepper

  greenhouse technology has allowed for an increase in per crop harvest from 2-3 months in the field to 8-9 months in a greenhouse environment. [...] belongs to the nightshade family Solanaceae. This plant genus includes all varieties of peppers, including the mild bell pepper and hot peppers in jalapeno [...] jalapeno and habanero. The pepper plant is native to tropical America. Pepper plants are perennials, but are typically grown as summer annuals. Pepper plants

• Tomato

  ensures that the ovaries in the flowers are fertilized with pollen, leading to the formation of healthy fruits. To encourage pollination in tomato crops [...] Management (IPM) in tomato crops Integrated Pest Management (IPM) is of importance in tomato cultivation. Tomatoes are exceptionally susceptible to a range of [...] crops, growers need to create pollinator-friendly environments, encouraging them to shift from the use of pesticides harmful to bees to pollinator-friendly

• trial results wireworm control

  nematodes Results in irrigated potato Wireworms damage in irrigated potato (% of potatoes with holes) 2023, Italy 80 20 60 15 Damage (%) Efficacy (%) [...] (%) Casea efficacy against wireworms in irrigated potato (% damage reduction compared to untreated control) Emilia-Romagna Region - North Italy, Sagea [...] by Koppert has been selected to target specific pest insects. How does it work? After application, the nematodes set out in search of their prey. They can

• Rhizoctonia solani

  fungus, only the mycelium is important in this context. Thanatephorus cucumeris is a soil-inhabiting fungus, that is very persistent in the soil. It overwinters [...] before and after emergence. A typical symptom of root infection is that the taproot is reduced to a thread. Reddish-brown lesions occur on the root just below [...] long believed to be a sterile fungus, but recently it was discovered that the fungus produces basidiospores. These spores don’t play a role in the epidemics

• Municipality Venray: biological control of oak processionary caterpillars

  According to Bergeijk, the results have been generally positive. ‘The trees that we have treated have been 90% cleared. What is interesting is that avenues [...] other caterpillars , which means they are less harmful to biodiversity. This is something that is high up on the political agenda, as well as being an important [...] running east to west are typically free of oak processionary caterpillar, while those running north to south still have some nests. It is possible that there

• Glasshouse potato aphid

  leads to deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the lower leaves in the crop [...] dark thorax and a dark abdomen that has pale to dark transverse bands. The body shape is similar to wingless females, but is 2.0-3.0 mm long. The glasshouse [...] and a great variety in colour. When reproduction is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and

• Thripex-Mini

  prior to using Thripex and it is recommended to carry out a small field test to monitor the effects. Best working conditions The predatory mite is not [...] therefore need to be introduced to the crop as soon as possible after receipt. Failure to do so can have a negative impact on their quality. In case you do [...] predatory mites are easily damaged Please note Thripex Mini contains grain mites and bran. These mites might cause slight damage to some crops, especially

• Common cockchafer

  for the larvae to fully develop. The grubs are 10 to 20 mm in the first autumn, 30 to 35 mm by the following autumn, and 40 to 46 mm in the spring of their [...] also known as the doodlebug or May bug is a European beetle of the genus Melolontha, in the family Scarabaeidae. Damage symptoms The common cockchafer ( Melolontha [...] Melolontha melolontha ) does most of its damage in the larval stage, when it feeds on roots of grasses and clover. The adults feed on the leaves of trees