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. […]
February 20, 2018
Thrips Causing Headaches? New Research Shows Bio-based …
Dr. Rose Buitenhuis will present practical knowledge for growers to implement immediately during Biocontrols West Conference in San Diego, March 7-9.
February 20, 2018
12 New Poinsettias and Succulents for Holiday Sales, Cr…
Poinsettias and succulents are both in-demand products with today’s consumers. Here’s a look at some of the newer introductions available for retail sales in 2018 and 2019.
February 20, 2018
Top 100 Growers Survey for 2018 Is Now Open!
Operations with more than 400,000 square feet of environmentally controlled production are eligible to take the survey, which provides valuable market knowledge on how the nation's largest growers are innovating, sourcing labor, keeping up with demand, and setting trends.
February 19, 2018
All-America Selections Names Latest Variety Winner, Ann…
All-America Selections (AAS), the 85-year-young non-profit plant trialing organization, had a very busy month of January.
February 17, 2018
Gotham Greens Building Second Greenhouse in Suburban Ch…
The new $12.5 million, 105,000-square-foot greenhouse will be near the company’s first Chicago greenhouse, and will be a free-standing structure.
February 15, 2018
Boxwood Blight, Seed Your Future Among Topics Receiving…
The Horticultural Research Institute recently announced the 10 research projects that will receive funding in 2018 to investigate challenges and solutions in production, pest management, environmental stewardship, and business and marketing.
February 14, 2018
Spring Meadow Nursery Furthers Its Mission of Giving Ba…
The Spring Meadow-Proven Winners Endowment Fund through the Horticultural Research Institute has now topped $800,000, with more scholarships coming in 2018.
February 13, 2018
Don’t Let Your New Year’s Resolutions Fade …
Stuff got real in 2017, and it caused many of us to stop and reflect on the current state of the world, and how we can impact change — or at least improve our own situations. Life is too short, and we work too hard, to not use the annual renewal as an opportunity to take stock of our own personal lives, businesses, and careers, and make the necessary adjustments that will allow us to work smarter and live better. Even if you have already given up on your resolutions, perhaps you can think of January as a trial month and make February the month when you really get to work on your goals. And while I know it’s a difficult month to start on some of these changes, since you’re already immersed in the busy spring season, I promise that if you take some time to evaluate your reality […]
February 12, 2018
Calling All Designers: Enter the International Plantsca…
Applications are being accepted through April 13 for AmericanHort’s International Plantscape Awards, which recognize achievements in interior plantscape design, installation, creativity, renovation, and innovation.
February 11, 2018
Bayer Has New Turf and Ornamentals Global Market Manage…
Jose Milan will be focused on helping growers deal with regulatory issues, while promoting the environmental benefits the ornamentals industry offers.
February 10, 2018
Applications for Dümmen Orange’s Dr. P. Allen Hammer Sc…
Named for Dr. P. Allen Hammer in acknowledgment of the contributions he has made to the floriculture industry, the scholarship is intended to extend Dr. Hammer’s legacy by supporting the next generation of floriculture students.
February 9, 2018
Garden Retailers at TPIE Highlight Their Favorite Produ…
A team of garden retailers once again participated in the 2018 Tropical Plants Industry Expo Cool Product Awards.
February 8, 2018
Who Will Be Our 2018 Head Grower of the Year and Operat…
The deadline for submitting nominations is fast approaching, so be sure to let us know who you feel is most deserving of these awards!
February 8, 2018
Learn the Basics of Biocontrols for Controlled Environm…
Growers producing crops in protected structures, including ornamentals, vegetable crops, and cannabis, can learn about effective sanitation, banker plants, and buying and using beneficials and predatory insects at the Biocontrols USA West Conference in San Diego, March 3-7.