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September 07, 2001
Powdery mildew diseases cause serious damage to many floral and ornamental crops in nurseries, greenhouses and landscapes both outdoors and indoors. The diseases are very similar, with symptoms initially appearing as small, white, powdery or dusty...
September 07, 2001
Celosia One trial highlight was the broad range of interesting celosia cultivars, one of the most popular of the field cut flowers. Celosia (Celosia argentea) cultivars are available in three groups: cristata has convoluted, brain-like flower heads...
August 31, 2001
Dianthus Sakata’s Dianthus ‘Kawara’ is a reliable perennial plant from seed that blooms from spring until heavy frost. Kawara has feathery flowers in pastel tones that are attractive in landscapes and as cut flowers. Plants are...
August 31, 2001
Supreme Court ruling changes advertising The Supreme Court’s ruling in June that a mandatory advertising campaign for the mushroom industry violates the First Amendment guarantee of free speech could have ramifications in other crop categories. The...
August 31, 2001
When I first entered the floriculture industry, a grower I met through the magazine, who will mercifully remain nameless, warned me that I was getting involved with a strange bunch of people. Nice, mind you, but a little odd. I didn’t know what to...
August 31, 2001
Commercial growers have suffered several hard hits this year: outrageous energy prices, poor spring sales and a down economy, to name a few. And because the hits keep coming, some people in the industry have started investigating how to raise...
August 31, 2001
Breeders have introduced a large number of potentially important new poinsettia cultivars in the past two years, and this fall many growers will be producing some of them for the first time. Below are short descriptions of several of these new...
August 31, 2001
Crown of Thorns originated in Madagascar. Plants were brought into the U.S. industry as novelties, but due to the thorny stems and lack of freeze tolerance, they stalled out in the cacti collector’s market. Now, after 30 years of breeding and...
August 31, 2001
The outlook for the Dutch tulip crop for the 2002 forcing season is very good. Temperatures in the growing regions throughout the late spring were cool and favorable for a strong crop. Bulbs are now out of the ground, washed free of soil, peeled ,...
August 31, 2001
The production requirements of ornamental cabbage and kale can easily be forgotten in the fall because care of the two other major crops, pansies and poinsettias, may take precedence. Production of pansies, poinsettias and ornamental cabbage and...
August 31, 2001
Virus-induced diseases of greenhouse-grown flowers have the potential to be some of the most economically devastating diseases associated with the production of these crops, and some plant viruses can be more of a problem than others. Common viruses...
August 31, 2001
Greenhouse and floriculture crops represent an important part of agribusiness, with more than $5 billion annually in farmgate receipts. Clearly, this is an important business that must consider how to maximize efficiency in all areas of production,...
August 31, 2001
Fungicide Resistance Fungicides should be used intelligently to prevent the loss of effectiveness by resistance development. Table 1 lists fungicides and their chemical classes that are most likely to develop pathogens with resistance. Do not make...
August 31, 2001
Subirrigation is becoming an increasingly common way of watering and fertilizing greenhouse crops. A properly managed ebb-and-flow, trough or flooded floor system saves labor, water and fertilizer, and reduces nutrient pollution of groundwater and...
August 31, 2001
After the 2000 spring season, you probably took rigorous notes about which crops performed well, what conditions led to pest and disease problems, and how you could be more cost efficient for the 2001 season. Regardless of how much you plan, weather...
August 09, 2001
Minimizing fertilizer and water requirements has become increasingly important to greenhouse growers who are facing higher water and fertilizer costs, decreasing availability of quality water and increasing environmental concerns to protect surface...
August 09, 2001
Fertility monitoring and management for pansies requires a balancing of the plants’ needs. Growers must be aware and manage root substrate pH and electrical conductivity (EC), as well as provide adequate, but not excessive, levels of all the...
June 26, 2001
All-America Selections, All-America Rose Selections, Fleuroselect and FloraStar provide a service to professional growers by letting them know which varieties are good performers, important information for the growers who can’t make it to the trials...
June 26, 2001
Ornamental cabbage and kale have become increasingly popular as fall bedding plants due to their brilliant, interesting and long lasting foliage. Ornamental cabbage and kale complement garden chrysanthemums and fall pansies exceptionally well,...
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