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Gummy Stem Blight: signs and treatment in Jamaica
A devastating fungal disease of cucurbits causing stem cankers and fruit rot. PlantArmor's crop guides list gummy stem blight as a common problem on watermelon.
Signs to look for
- Brown, gummy exudate oozing from stem cracks
- Circular dark spots on leaves
- Black rot on fruit
What to do
Crops it affects
Questions growers ask
How do I recognise gummy stem blight?
A devastating fungal disease of cucurbits causing stem cankers and fruit rot. The signs to look for: Brown, gummy exudate oozing from stem cracks. Circular dark spots on leaves. Black rot on fruit.
What should I do about gummy stem blight?
Rotate crops. Apply preventative fungicides (Chlorothalonil, Mancozeb). Keep vines dry. Always read the product label and observe the registered rate, re-entry period and pre-harvest interval before you apply any pesticide.
Which crops are affected by gummy stem blight in Jamaica?
PlantArmor's crop guides list gummy stem blight as a common problem on watermelon.
Check it in the field
PlantArmor's reference library works offline, so you can compare what you are seeing against it standing in the plot, then log the spray you use along with its re-entry and pre-harvest intervals. Free to use.
This description and treatment come from the same reference library the PlantArmor app uses in the field. Pesticide registrations and permitted uses change — always read the current product label and observe the stated rate, re-entry period and pre-harvest interval.