Mode of Action Group 3: DMI fungicides - Greenhouse Management
WEBJune 21, 2010. The mode-of-action group 3 (demethylation inhibitors, also called sterol biosynthesis inhibitors) fungicides were first introduced in the mid 1970s and products continue to be introduced. There are over 30 active ingredients in this group with only a few currently registered for ornamentals.
Six poinsettia pests and how to overcome them
WEBAug 18, 2021 · Cultural: 1) remove weeds from within and around the greenhouse, 2) avoid over-fertilizing poinsettia plants with water-soluble nitrogen-based fertilizers, and 3) remove leaf debris from production areas. Scouting: 1) use yellow sticky cards to capture whitefly adults, which will help to detect early infestations, and 2) visually inspect the ...
Choose the right plastic film for your needs
WEBMay 27, 2010 · The life of polyethylene film is limited due to degradation processes induced by sunlight and heat. Copolymer poly is a low-cost material that is good for one season. It is a good choice for seasonal greenhouses, overwintering structures and high tunnels. Avoid construction grade material that has less strength.
Understanding greenhouse irrigation system clogging
WEBOct 25, 2018 · Biological clogging occurs when biofilm — commonly known as lime — builds up in an irrigation system’s pipes and slows or stops water flow, Raudales says. It is most often greenish-brown colored, giving growers a visual indicator that their pipes are clogged. “ [Biofilm] is mostly foreign debris caused by bacteria, but you can also ...
6 common greenhouse problems & how to solve them
WEBMar 2, 2021 · Common problem No. 4: Constant mold and pest problems. Besides the overall function of the watering/fertigation system, close attention to disinfection is a major priority. Pythium and other vectors for disease can be transmitted by contaminated irrigation equipment and/or contaminated water. If growers are experiencing continued Pythium ...
Streptocarpus ‘Ladyslippers’ - Greenhouse Management
WEBMay 17, 2012 · To maintain color of foliage, use 100 to 125 ppm nitrate fertilizer with a balanced feed. Calcium and potassium nitrate based feeds work best. Maintain electrical conductivity at 0.8 to 1.0 mmhos. Proper pH level for Streptocarpus is 6.0. Use of Sumagic or B-9 growth regulators are effective without concern of stunted growth. Use at label rates.
Maximizing success with foliar sprays - Greenhouse Management
WEBMar 1, 2021 · Starting out with high-quality water is the first step in maximizing effectiveness. Beyond mixing the right amount of active ingredient at the right time, consider enhancing your formulation. If permissible, as indicated on the PGR label, add a non-ionic surfactant or “spreader-sticker” to improve the efficacy of your foliar sprays.
Equipment: Potting machines - Greenhouse Management
WEBJun 2, 2014 · The EZ Potter, developed by Sean Ellis of Mitchell Ellis Products, is a simple conveyor with a v-guide that is used to feed pots below the soil flow. It has one guide rail on each side that slides in or out to fit pot sizes. The pots can be placed on the infeed belt; spacing of the pots can vary. The pots are filled with soil and a sensor ...
Cordylines' color, form create landscape standouts
WEBFeb 29, 2008 · Cordyline is a diverse genus of woody monocots noted for their striking foliage. Many Cordyline species exist, most with unusual attributes that make them desirable plants for landscape and interior uses.. Cordylines are members of the Dracaenaceae family, most closely related to Dracaena indivisia, better known as the dracaena spike.Many consumers are also familiar with the ti plant ...
Selecting energy/shade/blackout screen materials
WEBMar 22, 2021 · With an inside aluminum surface, it will provide 70% energy savings. Other considerations: Multiple screens are becoming popular to get maximum energy conservation. Cost is on average between $2 - $5/sq ft installed. Most screen materials are available in many shade levels and energy conservation percentages.