September 20, 2011
4 Pest Control Products
If the rumors are true, there are still insect and mite problems on greenhouse crops. The problems are being caused by the usual suspects–the pest group names have not changed much over the decades (although individual species within groups have varied). There’s just been a periodic reshuffling of the rankings in a kind of whack-a-mole scenario. The current top pest group listing includes aphids, mealybugs, thrips, fungus gnats, whiteflies and spider mites. Also fighting for top rankings are leafminers, caterpillars, shore flies and other mites (i.e. broad mites). As with any ranking of best or worst, you might have another list of top pests depending on what crops are being grown. The reasons why there are a fairly constant group of insects and mites to deal with are already well known (rapid pest reproduction cycle, wide host plant range, growing crops in protected environments, continuous production, etc.). These reasons are […]
August 10, 2009
What To Look For This Summer
Summer is usually the time of more intense insect and mite pest pressure, simply because temperatures are warmer and many major pests develop faster – or in some cases, just develop, which they do not do outdoors in a northern winter. Mites and insects are “cold-blooded” animals that are affected by temperatures. Feeding, reproduction, development time and survival are mostly dependent on temperature, but moisture, humidity, plant health, nitrogen level, and soil/potting mix contribute as well. Following are a few examples of greenhouse and nursery insect and mite pests that do best when temperatures warm. Two-spotted spider mites Two-spotted spider mites are warm-season mites, doing best when temperature are higher. It takes about 28 days to develop from egg to adult at a cool temperature range of 50°–68°F, but only about 8 days at a warmer temperature range of 77°–95°F. You can easily see that more spider mite generations in […]
November 18, 2008
Better Pest Management by Richard Lindquist
It’s hard enough to remember yesterday at my age, let alone to predict the future–especially a future 25 years out. As I thought about things like long-range weather forecasts, preseason sports predictions and pre-primary predictions of who the presidential candidates would be, my confidence returned. These predictions–by experts–are for periods as short as three days and as long as a year or more. And those who predict the weather, sports outcomes and the next president are frequently wrong. I might be just as wrong about an even longer period of time, so here are some fearless predictions of events that probably will not happen and why. Aphids, whiteflies, thrips, botrytis, downy mildews, powdery mildews, root rots and more pests will all disappear. Not gonna happen! The same general group of insects–mite and plant pathogen pests–will continue to entertain the next generation, just as they have for past and present generations. […]
April 24, 2017
Ian Baldwin Offers Examples From Grower-Retailers on Pr…
In March, Baldwin wrote a blog advising grower-retailers to consider raising their prices this spring. The post inspired a number of creative suggestions.
April 22, 2017
American Floral Endowment Announces Winners of 2017 Pau…
Four students pursuing careers in horticulture now have scholarships to help them along the way, thanks to the American Floral Endowment.
April 20, 2017
Terra Nova Nurseries Releases Two New, Attractive Begon…
Stardust is the latest addition to Terra Nova Nurseries’ existing T Rex Begonia series, and Silver is the first introduction to the company’s new Spectre Begonia series.
April 19, 2017
Suppliers Can Offer Technical Solutions for New Cannabi…
Here’s a look at how a few manufacturers have partnered with growers to make their transition into cannabis a smooth one, whether it’s through hands-on guidance or partnering with other industry leaders.
April 18, 2017
Cool Combos From CAST 2017 – Editor’s Choic…
With container gardening becoming more of a lifestyle among consumers than a trend, and breeders continuing to put more effort in container mixes and components, I feel I would be remiss if I didn't share some of the special combinations that not only caught my eye at California Spring Trials, but absolutely took my breath away and made me want to immediately get started gardening.
April 17, 2017
LumiGrow’s Latest Lighting Research Highlighted in Grow…
Industry leaders representing a broad range of vegetable, floriculture, and cannabis producers gathered to learn how to implement modern lighting strategies for their own production.
April 16, 2017
Danziger Invests in Continued North American Business G…
As part of a new business structure for its North American market, Mike Fernandez has been appointed Market Manager North America for Bedding Plants and Perennials, and Kate Zvara was named as Key Account Manager and Retail Specialist.
April 15, 2017
How Oregon Growers Are Making Lean Improvements With He…
The Oregon Nursery Lean Consortium recently helped two Pacific Northwest growers realize significant productivity gains and labor savings.
April 14, 2017
How to Trial a New Product Before You Use It in Your Gr…
Before you apply a new product on a plant, you want to make sure it is safe and effective. Technical experts from Kemin have compiled a five-step guide designed to help you measure the benefits of a new product you want to incorporate into your operation.
April 13, 2017
AmericanHort’s Production Technology Conference To Debu…
The AmericanHort Production Technology Conference is designed to give nursery and greenhouse growers a chance to get hands-on with the latest advancements in production technology and explore the return on investment potential of equipment purchases and upgrades.
April 13, 2017
Research Team Seeking Feedback From Hydroponic Growers
Are you a hydroponic grower of food crops? If so, Michigan State University and Iowa State University researchers are looking for your input.
April 12, 2017
Looking for Info on New Varieties for Hot Climates? Che…
The Florida Nursery Growers and Landscape Association’s Florida Flower Trials, which are focused on new and improved varieties able to thrive in the extremes of Florida’s climate, are a great opportunity to connect with national breeders.
April 11, 2017
Begonias, Celosias Among Dr. Allan Armitage’s Favorites…
Check out some of Allan’s top picks from his final day at CAST 2017, which included visits to Green Fuse Botanicals and Floranova.
April 11, 2017
Green Fuse Botanicals’ Rex Begonias and First Looks; Fl…
Here are the highlights from Green Fuse Botanicals and Floranova on the last day of CAST 2017.