Zonal geraniums with low pH can exhibit iron and manganese toxicity symptoms, including marginal chlorosis, leaf speckling, and upward-cupping of the leaves, according to Michigan State University experts.
USDA-Agricultural Research Service horticulturist Dr. James Altland is exploring an alternative method for controlling weeds in greenhouse propagation systems by using steam or hot water to kill weed seeds.
The University of Florida (UF) Institute of Food and Agricultural Sciences is offering an Advanced Nutrient Management course through its online greenhouse training program.
With limited options for chemical pest control, cannabis growers are incorporating biocontrols into their integrated pest management programs. More education will cement this solution as a viable option in this emerging market.
Andrew Mefferd’s new book, “The Greenhouse and Hoophouse Grower’s Handbook: Organic Vegetable Production Using Protected Culture,” covers the many benefits of protected culture food production, from being first to market, to more effective pest control.
Based on research completed at North Carolina State University, here are some methods for increasing branching and flower bud production of Christmas Cactus (Schlumbergera bridgessii).
Researchers at North Carolina State University determine the best timing, rates, and production methods for using benzyladenine to improve branching and flowering.
Herbicides applied off-site or within the greenhouse can significantly damage ornamental and edible crops. Beth Scheckelhoff, an Extension Educator for Greenhouse Systems at The Ohio State University, provides some examples and basic recommendations for mitigating and preventing herbicide contamination and injury in the future.
Hoogendoorn recently published a whitepaper that provides background and applications of Next Generation Growing methods, which are designed to optimize plant growth by improving greenhouse climate conditions.
Knox Medical is officially open for business. Founded on more than a half century of plant growing knowledge at Knox Nursery, the new cannabis business offered a look at its cultivation lab late last year.
When the weather is moist and humid, susceptible greenhouse plants may need to be protected from Botrytis cinerea, a fungus that causes leaf spots, blighting, and stem cankers.
If you mix your own or purchase a pre-mixed substrate, it is recommended you determine the initial pH. In too many cases, growers end up discovering low substrate pH.
Four-lined plant bug damage is very characteristic: circular brown to black spots about one-sixteenth of an inch in diameter. The spots are easily mistaken for disease or frost damage.
Now known as the Orora Visual Horticultural brand, the company will provide an enhanced collection of new packaging, point of purchase, and technology solutions specifically directed at the nursery, lawn, and garden industry.
