Growing Poinsettias can be frustrating.
On the one hand, it’s one of the most reliable, profitable niche markets in the industry. In 2013, Poinsettia sales in the United States totalled $146 million (USDA Floriculture Crops Summary). It’s one crop consumers and businesses alike consistently buy every holiday season.
And what better way to end a year than by selling a nice crop of Poinsettias?
But at the same time, Poinsettias can be a difficult—and therefore risky—crop to grow. The inherent climate swings of their long growing season demand a lot of a grower who needs to shepherd them from propagation to finishing—without their succumbing to disease. One pest, one fungus, one bacterium left unchecked could quickly snowball and spell disaster.
Let’s leave the snowballs for wintertime and get to the business of raising healthy Poinsettias. In the spirit of know thy enemy so you can defeat them, we’ve compiled a list of four potentially devastating foliar diseases that tend to strike early in production: Erwinia, Xanthomonas, Scab, and Botrytis.
As with all diseases, it’s important to obtain an accurate diagnosis from a laboratory as many diseases present similar symptoms. For best results, regularly rotate fungicides and bactericides to combat resistance. Phyton 27 and Phyton 35 are excellent resistance management/rotation partners and have a low risk of phytotoxicity when used as directed.
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