• Nothing beats original

  . Choosing the right predatory mite solution to control a pest infestation is contingent upon various factors such as the type of crop, the specific pest [...] stories Dive into the rich history and innovative spirit behind Koppert’s predatory mite solutions. Since 1967, we have been at the top of our game helping [...] unmatched portfolio of predatory mites . Uncover the untold stories behind this track record and gain insights into the passion and dedication that continue to

• Powdery mildew

  nutrients from the epidermal layer of plant cells. Most of the fungus remains on the outside of the plant surface. On the mycelium on the plant surface [...] leaf, because the fungus infects the plant by entering through the stomata and there are more stomata on the underside of the leaf. On the upper side, yellow [...] side of the leaf. In severe epidemics in cereals, the ears may also be infected. In pepper, the fluffy colonies occur mostly on the underside of the leaf

• Grape downy mildew

  humidity), the disease is often well-established before it can be visually detected in the field. Leaf symptoms Yellowish to light-green oil spots on the upper [...] Grape downy mildew Effective management of grape downy mildew (Plasmopara viticola) relies on a preventive and integrated approach. Since the pathogen remains [...] mesophyll cells. The latent period (the time from infection to visible symptoms) ranges from 4 to 21 days, depending on temperature; the most rapid development

• Grapevine powdery mildew

  Grapevine powdery mildew Symptoms of grapevine powdery mildew vary according to the phenological growth stage and the severity of the infection. Early signs [...] to yellowish spots on the upper leaf surface Development of white to grey, powdery fungal growth Powdery coating may also appear on the underside of leaves [...] Lifecycle of Grapevine powdery mildew The lifecycle of grapevine powdery mildew (Erysiphe necator) is closely synchronized with the vine growth stages and e

• Downy mildew of Cucurbits

  They cause lesions on the upper leaf surface, bordered by the veins, which are first yellow and then turn brown. On the underside of the leave fluffy growth [...] required. For most downy mildews, the optimum temperature is around 15 o C and the closer the temperature is to this, the shorter the leaf wetness period that [...] actually the sporulation of the pathogens extruding from the stomata. Life cycle and appearance of Downy mildew Pathogens causing downy mildew are not fungi

• Keep a Close Eye on Thrips

  May 21, 2020

  larvae never appear on the sticky traps simply because they cannot fly. In short: by the time you see thrips on the sticky trap, the thrips problem has already [...] to find the larvae. In some crops, you will find them mainly in the heads of the plants, while in others they tend to be in the flowers or on the leaves [...] Sticky traps lure adult thrips Keep in mind that by the time the first thrips appear on the sticky traps, the infestation will have been developing for quite

• Phil Gerry Featured On Fall IPM Podcast

  July 5, 2025

  Gerry is the featured guest on the Tech On Demand Podcast episode: A Biological Approach to Fall IPM . Phil is a Technical Sales Consultant for the Northeast [...] Bill Calkins is widely known as the editor of Tech On Demand , the email newsletter discussing technical topics in the horticultural industry. In his companion [...] covering the latest research and timely production tips and tricks. Phil's interview can be heard on either of two locations: Tech On Demand on Spotify

• Crucial Information on Pollination at High Temperatures

  August 11, 2020

  experts in the field of pollination - now clearly points out the effects of high temperatures on pollination. ‘In the past, we have always observed the impact [...] es on the pollination activity of our bumblebees. It was now time to complete the equation by looking into the effect of hot climate conditions on plant [...] flower is the most critical process related to fruit set, yield, and quality, but are you clear on how hot climate conditions impact on both the pollinator

• Effective Biological Control: Keep a Close Eye on Everything

  August 18, 2021

  to focus on the top or on the older leaves or flowers. In some cases, it is useful to concentrate on the top of the leaves, and in others the bottom. Good [...] often first seen on the sticky trap. By counting regularly and keeping track of the results, you can maintain a good picture of whether the situation is improving [...] pests! Sticky traps and pheromone traps Scouting in the crop is sometimes the only way to determine the development of a pest. For example, mealy bugs , spider

• Getting a handle on the spider mite – how can you keep population development under control?

  March 3, 2023

  cucumber. The presence of natural enemies also has a good inhibiting effect on population development. The predatory mites , which are the basis for the products [...] three days, so the more you can do to lower the temperature, the more you can impair development. Air humidity is also important, as the spider mite like [...] introduce large numbers of them at the start of the infestation. If you don’t, the damage will be done before you have the infestation under control. Some