April 2009
Q We’ve been battling a species of Burkholderia in our commercial orchid crop that appears to be completely resistant to copper. We haven’t found anything that works to prevent or cure the problem. Do you know of anything...
In European greenhouses, conventional spraying with output quantities of 500-1,500 liters, or even more, of spraying liquid per 21⁄2 acres is still widely used. But scientific advances, practical experience and increasing...
About 20 years ago, researchers at Michigan State University (MSU) discovered that, in many plants, stem extension is influenced by the way temperature is delivered in each 24-hour period. In particular, plants are often...
April 09, 2009
Don’t feel listless if pests keep attacking: Here are two lists to help you determine why you have a problem and why your current methods aren’t working. Pest Power Most pests that attack and damage plants in greenhouses are...
Making flowers last longer has been the goal of the floriculture postharvest research program at the University of Florida for more than 30 years. We undertake applied research and teaching on the postharvest biology and...
In late January, I attended the 2009 IPM Essen Horticultural Expo held in Essen, Germany. It was my fourth time attending the show, and, as in the past, the insight I gained into emerging trends in Europe proved to be well...
Lavender continues to be a popular perennial plant. Growers now have one more reason to be excited about producing lavandula: There is now an award-winning series with a range of flower colorations. Let me introduce you to...
Greenhouse pests. Everybody has them. Nobody wants them. What’s a grower to do? The damage that insects can wreak in your greenhouse can be devastating. In today’s economy, no one can afford to lose crops — especially to...
“Do what we can, summer will have its flies.” — Ralph Waldo Emerson For growers, working to keep pests away from crops has always been accepted as part of the game. However, the playing field might be shifting. As experts...
Hypericum has a long history dating back to ancient Greek times. It was believed to possess magical properties that dispelled evil spirits. There was a common medical belief that sleeping with a piece of hypericum under your...