What is causing my blackberry plant (still only 1-2 years old) to yellow and get spots on them?

1 Answer

Answer :

sounds like a fungus.  To keep it from spreading you need to rake up those leaves that are dropping and bag & trash them.  The have a prepared fungiscide in the lawn & garden store.....spray now & the spring up to bud stage and stop.  Wear proper gear and don't spray if it windy or going to rain.

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