Plant Health

Growing media 101

All growing media are not created equal. Water holding capacity, nutrient contents, and important considerations like pH and electrical conductivity (EC) will vary. It’s also important to consider the full list of contents within a... more »

Dr. Bugs: Anthranilic diamide insecticides

Answer: Insecticides in the IRAC group 28 are referred to as anthranilic diamides. There are three IRAC group 28 insecticides labeled for use in greenhouse... more »

Desktop diagnostics

There are no silver bullets or magic wands in plant production or pest management, but we have a wealth of information at our fingertips and a catalog of products from which to choose. To get... more »

Editor’s Letter: Best practice for pathogens

When it comes to pests and diseases in your greenhouse, figuring out the culprit and putting effective management practices into place as soon as possible is crucial. This month we highlight plant diseases and how... more »

Biobest Shares Tips for Cannabis Aphid Control

Cannabis aphid, Phorodon cannabis, is becoming a widespread pest with devastating effects on the crop. With only one host, cannabis and hemp, it affects plants by sucking sap and contaminating buds — making them unmarketable... more »

New Report Details Loss Due to Tomato Virus ToBRFV

IUNU published a new report on the Tomato Brown Rugose Fruit Virus (ToBRFV) titled "Learning to Live with ToBRFV." The report contains information on how ToBRFV spreads, how to detect ToBRFV, diagnostics for every stage... more »

New Website Helps Solve Pest and Disease Problems

A new Oregon State University (OSU) Extension Service website provides science-based solutions for garden pests, weeds and disease problems in one easy-to-navigate place. The project was shepherded by Weston Miller, an OSU Extension community horticulturist... more »

Outstanding Cannabis Flowering Depends on the Roots

Building and maintaining an efficient indoor operation depends on eliminating risks wherever you can, and the growing media you choose is no exception. Sure, a premium mix is crucial for healthy, uniform crops and high... more »