• Getting a head start - The importance of scouting in winter

  January 31, 2025

  important principle to scout for diseases is to understand what a healthy plant looks like. This is specifically key to identifying seedling diseases. [...] pests like aphids and caterpillars , and early-season diseases like Fusarium spp , Pythium spp, and Microdochium spp. The Koppert products like the beneficial [...] communicate in colour and growth, so when scouting for seedling diseases look for yellowing, wilted, stunted, or dead plants. In general, certain weather

• Spidex Vital lives up to its promises

  Spidex Vital has done what Sjaak van Dijk expected of it. A week after the first deliveries were released, he had a closer look at the crop. ‘It was clear [...] three times. This is always a critical and tense moment on cucumber farms like mine. And as spider mites can cause real problems in this type of crop, an [...] with the explanation Sjaak received from consultant Ron Delissen and with what Koppert promised in the leaflet, he tells us. ‘Spidex Vital immediately gets

• Broccoli

  cultivar group that belongs to the species Brassica oleracea. Broccoli looks a lot like cauliflower, which belongs to a different cultivar group of the same [...] The plant has a large, flowering head that is usually green. The head looks a bit like a tree and branches out from a single thick, edible stalk. Broccoli

• European red mite

  small ridges running top to bottom, with a thin stalk on top. They look a bit like an onion. Adult females are about 0.4 mm long, brick red, and oval shaped [...] crowded. Contrary to the two-spotted spider mite , Tetranychus urticae , it does not produce large amounts of webbing. The eggs are about 0.15 mm in diameter

• Caterpillars

  consistent quality and yield. Solutions for caterpillar control Learn more about What are caterpillars? Caterpillars are the larvae of butterflies and moths. [...] spreading out over the plant as they grow larger. As their size increases, so too does the damage they inflict: leaves are often skeletonized, with only the mid-rib [...] leave behind. Life cycle of caterpillars Caterpillar control videos Take a look at the video or go to our Youtube channel to see our caterpillar control

• Thrips

  is a type of waste material that they produce as they feed. The frass looks like small black or white specks on the surface of leaves or flowers and can [...] crop quality and productivity. Solutions for thrips control Learn more about What are thrips? Several species of thrips are a major problem in greenhouse [...] , a name that literally means ‘fringed wings’, and refers to the eyelash-like fringe of hairs along both edges of the thin wings. There are more than 6

• Transforming crop protection: the rise of predatory mites

  July 21, 2025

  greenhouse to field. And we’ve adapted formats too, like Ulti-Mite sachets, to withstand heat and humidity.” Looking ahead: predatory mites in outdoor crops and [...] joined a government lab with the Junta de Andalucía. But when Koppert came looking for a research director, he saw an opportunity that aligned perfectly with [...] predatory mites now form the backbone of protocols tackling invasive pests like Thrips parvispinus and Scirtothrips in peppers. The power of mites and the

• Phytophthora: symptoms starting to show

  April 7, 2021

  issues Functioning roots We cannot eliminate root diseases, but what we can do is look to keep an active, functioning root system, which supports any plants [...] available, so we either accept the losses caused by the weak and dying plants, or look at taking steps to promote plant health , and help the crop get through to [...] infection, but experience has shown that we can work to manage the symptoms. What triggers the ‘fall out’? Root diseases are opportunists. In many cases, the

• Limonica: breakthrough in large-scale production of a complex predatory mite

  August 5, 2025

  Koppert. “But it places extremely high demands on its living environment. It does not tolerate disturbances, needs space, and only accepts the best food. It [...] support growers even better. Unique expertise as a distinguishing factor What sets Koppert apart is its deep-rooted expertise in the production of natural [...] upscaling, and offers growers the certainty of an exclusive, reliable product.” Looking ahead: Limonica as the standard in integrated crop protection Marjon is

• Bacterial spot

  specks are seen on green fruits. The specks grow into brown spots that look like scab. These spots may be surrounded by a halo. In pepper, the spots on [...] first small, circular and green but they turn brown, become raised and look like cracked scab. Life cycle and appearance of Bacterial spot Xanthomonas