• Red Headed Flea Beetle Eradication Described in April 2025 GrowerTalks Issue

  April 1, 2025

  We Know What Eradicates Red Headed Flea Beetle , an article by Koppert’s national ornamental consultant team manager, Jeremy Webber, appears in the April [...] respect to rate, location, timing, and application methods of the biosolution. It’s an interesting behind the scenes look into the journey from discovery [...] (IPM). For more information about building an effective bioprogram, contact Jeremy at: jwebber@koppert.com . We Know What Eradicates Redheaded Flea Beetle

• SS_Acadian Wine Grapes_2026_MAR2026_Digital

  0 34.4% 7.0 Six independent field trials in California (Lodi – Chardonnay; Kingsburg – French Colombard) evaluated Acadian at 32 oz/acre versus untreated [...] untreated control and a seaweed competitor at 64 oz/acre. Measured indicators included leaf area index, rachis length/cluster compactness, canopy performance [...] Acadian™ The Gold Standard in Biostimulants Acadian is a premium Ascophyllum nodosum biostimulant produced through a proprietary alkaline extraction process

• Pests and Pals Webinar: Watch the Recording Now!

  March 19, 2025

  Missed the Live Webinar? Watch the Recording! Oops, an error occurred! Code: 202604201206007ca3f3d4 Event: 28fef01a585f4a54b053809cf6731bcb At Koppert [...] control is revolutionizing the way growers manage pests and pathogens—naturally and sustainably. In collaboration with Farmer Bailey , we hosted an exclusive [...] Fowler and Heidi Doering, technical experts from Natural Enemies / Koppert , shared their insights on how predatory insects and beneficial microbes can help

• Hemp russet mite

  General The hemp russet mite ( Aculops cannabicola ) belongs to the family Eriophyidae (gall and rust mites). It does not produce galls but lives freely [...] freely (vagrant) on hemp/cannabis plants. Aculops cannabicola is host specific to hemp/cannabis ( Cannabis sativa ). It cannot survive on other plants. Damage [...] Damage is caused by the mites sucking out the contents of plant cells. Hemp russet mite develops on the stems and petioles of the hemp plant and can cause

• Botrytis problems often have company

  December 20, 2021

  plants can fight off the fungus, that point of initial infection is left weakened. This is an ideal spot for other fungi, such as Fusarium , or bacteria [...] it easier for the fungus to get a hold. It’s a sinister interaction. Essentially, a crop is an ecosystem in which all living organisms interact. We capitalize [...] capitalize on this system when using natural enemies. However, as a grower, you’ll also have to be constantly alert to the unwanted interactions: one pathogen

• Biocontrol for Spider Mites

  April 24, 2020

  yellow. As damage increases, whole leaves turn yellow and as the chlorophyll is removed, the leaf, and eventually the whole plant, may die. Nymphs and adults [...] persimilis , Koppert produces the predatory mite, Amblyseius californicus , for added control with wide spread spider mite infestations, and the gall midge [...] visit the product's web page or contact a Koppert consultant. Optimize scouting efforts with Koppert iPM, intelligent Pest Management. Learn more at www

• Aphids—Go Time Appears in GrowerTalks Magazine

  March 1, 2025

  Koppert’s national ornamental consultant team manager, Jeremy Webber, has an article in the March issue of GrowerTalks. In Aphids—Go Time he discusses [...] For more information about building an effective bioprogram, contact Jeremy at: jwebber@koppert.com Aphids: It’s Go Time (GrowerTalks Magazine) [...] about the main types of aphids growers are most likely to encounter this spring, including the melon or cotton aphid , green peach or tobacco aphid , and

• A legacy of sustainability: Stolk Brothers and Koppert’s shared vision

  March 17, 2025

  turned to Koppert’s biological solutions. At the time, biological pest control was seen as unconventional, even laughed at. “People thought we were crazy [...] foundation of trust made it easy to work together,” Pieter explains. “Koppert has grown tremendously, but it remains a family business at heart—focused on quality [...] call someone at Koppert and get a sample to try out. Things have become more structured, but the essence of the company—the accessibility, the shared commitment

• Top Reasons for Using Bumblebees

  August 18, 2021

  Bumblebees are active at temperatures near 40°F (5°C), honey­bees become active at temperatures near 60-65°F (15-18°C). Bumblebees are active on cloudy, foggy [...] foggy, and rainy days, honeybees are less active at low light levels. Bumblebees will fly in winds of up to 40mph (64km/hr). Bumblebees pollinate flowers [...] honeybees, bumblebees are attracted to flowers with narrow corolla tubes, such as blueberries and cranberries which they can easily forage on with their long

• Caterpillars: a growth explosion in the life of butterflies and moths

  June 30, 2023

  one link in the lifecycle from egg to butterfly, at that stage, they become as much as two to three thousand times heavier! Phase 1: from moth to egg Butterfly [...] from a caterpillar, as it’s shorter and takes on a streamlined appearance. The skin is wrinkled at the beginning but splits over time and reveals the shiny [...] possible to salvage it. As the caterpillars eat more, they grow out of their skins. The number of times the caterpillar sheds its skin can vary from three