Troubleshooting
Jargonelle pear problems — and how to fix them
Jargonelle pear (Pyrus communis 'Jargonelle') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Pear scab (Venturia pirina)
Black-green scabs on fruit and leaves, causing cracking and cosmetic damage. Rake and dispose of fallen leaves in autumn. Apply myclobutanil or copper-based fungicide at bud burst and repeat at label intervals during wet spring weather.
Fireblight (Erwinia amylovora)
Bacterial blight causes blackened, wilted shoot tips resembling scorching; 'Jargonelle' has moderate susceptibility. Prune well below infected tissue with sterilised tools during dry weather; avoid soft-growth-promoting nitrogen feeds.
Premature fruit drop
As an early-ripening cultivar, 'Jargonelle' must be harvested promptly when fruit separates easily with a slight upward twist. Fruit left on the tree quickly becomes mealy; monitor from mid-July and pick as soon as ready.
Prevent jargonelle pear problems before they start
Most jargonelle pear issues are care-mismatch, not bad luck. Dial in the basics:
Jargonelle pear problems — FAQ
Why is my jargonelle pear pear scab (venturia pirina)?
Black-green scabs on fruit and leaves, causing cracking and cosmetic damage. Rake and dispose of fallen leaves in autumn. Apply myclobutanil or copper-based fungicide at bud burst and repeat at label intervals during wet spring weather.
Why is my jargonelle pear fireblight (erwinia amylovora)?
Bacterial blight causes blackened, wilted shoot tips resembling scorching; 'Jargonelle' has moderate susceptibility. Prune well below infected tissue with sterilised tools during dry weather; avoid soft-growth-promoting nitrogen feeds.
Why is my jargonelle pear premature fruit drop?
As an early-ripening cultivar, 'Jargonelle' must be harvested promptly when fruit separates easily with a slight upward twist. Fruit left on the tree quickly becomes mealy; monitor from mid-July and pick as soon as ready.