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Common pear > Leaf gall
What Causes Leaf Gall in Common pear?
Common pear, also known as European pear, Pear
Leaf gall primarily affects Common pear by inducing abnormal growths or swellings on leaves and stems. This disease can decrease the plant's aesthetics and, in severe cases, impair photosynthesis and growth.

Symptom Analysis

On Common pear, the main symptoms include swollen, distorted leaves, typically green or red in color. The affected areas may become stiff or woody, disrupting normal leaf function and tree vigor.
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What Causes Leaf gall Disease on Common pear?

Pathogenic bacteria
Especially Erwinia amylovora, causing abnormal tissue growths.
Environmental factors
High humidity and moist conditions favor the proliferation of the bacteria.
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How to Treat Leaf gall Disease on Common pear?

Non pesticide
Pruning: Remove and destroy infected parts to prevent spread.

Hygiene: Disinfect tools after cutting infected material.
Pesticide
Copper-based bactericides: Apply during dormant or early growing season to control bacterial spread.

How to Prevent Leaf gall on Common pear?

Avoid overhead watering
Reduces moisture on leaves, decreasing disease incidence.
Proper spacing
Ensures good air circulation around plants to minimize humidity.
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When is Leaf gall Most Active Period on Common pear?

Leaf gall is most active during spring when new leaves and shoots are developing, aided by wet conditions.

Infectivity

Can spread through tools and splashing water.

Lethality

Rarely lethal but can severely affect growth and vigor.

FAQs on Common Pear

How do I identify leaf gall on Common pear?
Look for abnormal swellings, distorted growths on leaves and shoots.
Can leaf gall kill Common pear?
It is low in lethality but can impact the tree's overall health if severe.
Is leaf gall contagious?
Yes, it can spread between plants via contaminated tools and water splash.
What is the best time to treat leaf gall on Common pear?
Treatment is most effective during dormant or early growing seasons.
Can I use chemical treatments for leaf gall on Common pear?
Yes, copper-based bactericides are effective during the correct application times.
How can I prevent leaf gall on new Common pear plants?
Use disease-free stock, provide good air circulation, and avoid excessive moisture.
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