November 2020

Biological Control Agents for Whiteflies

Question: What commercially available biological control agents can be used to regulate whitefly populations in greenhouse production systems? Answer: Whiteflies are major insect pests of many gree... more

Chat Room — November 2020

This month, we asked our readers about mum production, media usage, current disease problems and plans for 2021. Here’s what they had to say. ... more

Culture Report: Lavender Javelin Forte Series

With bright impactful color, delightful fragrance and exceptional performance, this lavender series is a standout from the greenhouse to the garden.

Designing the Most Effective Fungicide Rotation

What factors should growers consider before constructing a rotation program?

Discovering New Opportunity in 2021

2020 has proven to be a year unlike most of us have seen before. From the challenges with early spring and Easter crops to the strong demand that growers saw in May and beyond, many growers have disco... more

Effective Long-Day Lighting Fixtures

A large number of annual bedding plant and herbaceous perennial species flower earlier when grown under long days. A long day can be as few as 13 hours of light for some crops, while at least 15 hours... more

Greenhouse Cladding 101

There are many different factors to consider when selecting the right cladding material for your greenhouses.

Plant Celebration in the Northland

These vivacious designer recipe combination baskets were standouts at the Plantpeddler trial this summer.

Preconditioning Wood Substrates for Greenhouse Crop Production

This is the first article of a two-part series highlighting research trials aimed at better understanding the use and potential of wood products in greenhouse substrates.

We're happy to provide a sampling of the articles in this issue. To receive full issues of Greenhouse Product News, please subscribe.

« Back to past issues

Latest Photos see all »

GPN recognizes 40 industry professionals under the age of 40 who are helping to determine the future of the horticulture industry. These individuals are today’s movers and shakers who are already setting the pace for tomorrow.
Ben Vliestra
Sidney Phelps
Jennifer Moss
Daniel Norden
W. Garrett Owen
Jessica Montgomery
Elien Peters
Rose Oberholzer
Nikki Melin

November 2020 GPN
Get one year of Greenhouse Product News in both print and digital editions for free.


Interested in reading the print edition of GPN?

Subscribe Today »



Be sure to check
out our sister site.
website development by deyo designs