Growing petunias? Take time to check for TMV

February 19, 2014
Written by Dr. Nora Catlin, floriculture specialist, Cornell Cooperative Extension
Feb. 19, 2014 — Watch for symptoms of TMV in your petunia crops! Symptoms of TMV include leaf mottle, leaf distortion, vein clearing, stunt and flower break.

Recently, samples of petunias showing symptoms of leaf  mottle and distortion have  tested positive for Tobacco  mosaic virus (TMV).

So far we’ve seen TMV only on petunia this season, but know that this virus commonly troubles petunia, calibrachoa, tomato, and pepper.

There are various strains of TMV, and different strains have different host ranges – researchers are currently not certain which  particular strain is being  seen this season.

OTHER CROPS SUSCEPTIBLE

Since the disease has been found on petunia, carefully keep an  eye on your petunias as well as calibrachoas.

Some TMV strains are known to infect other greenhouse crops such as marigold, impatiens, geranium, nicotiana, osteospermum, lobelia, torenia, chrysanthemum and verbena.

Click here for this e-GRO Alert.



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