Insectos
Apple Tree Snake
Lepidosaphes Ulmi, Mytilococcus Ulmi
Pathogen:
Insect
Type:
Risk to the plant:
MILD
DESCRIPTION
WHO CAUSES IT?
Lepidosaphes ulmi and Mytilococcus ulmi are phytopathogenic insects known as scale insects, which mainly affect apple trees and other fruit trees, causing the disease known as serpeta. These insects feed on the plant's sap, which can weaken it significantly. Females lay eggs under their shells, which develop into larvae and then become adults. Mealybugs are most active in the warm months and can have multiple generations per season.
SYMPTOMS
Serpeta in apple trees can cause general symptoms such as weakening of the plant, yellowing of the leaves, premature leaf fall, and a decrease in the quality and quantity of the harvest. The presence of mealybugs manifests itself as small brown or gray shells on branches and leaves.
• Weakening of the plant.
• Yellowing and premature leaf fall.
• Decrease in the quality and quantity of the harvest.
• Presence of small brown or gray shells on branches and leaves.
TEMPERATURE AND HUMIDITY
18°C - 30°C
50% - 70%
HOW IS IT SPREAD?
Direct contact with infected plants, contaminated tools.
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• LAMBDA CYHALOTHRIN 1.5% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• LAMBDA CYHALOTHRIN 2.5% [WG] P/P
Authorized treatments in organic farming
• LAMBDA CYHALOTHRIN 1.5% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• LAMBDA CYHALOTHRIN 2.5% [WG] P/P
Insect allies
PREDATORY MITES
LADYBUGS
LACEWINGS
PARASITIC WASPS
HOVERFLIES OR PARASITIC FLIES
PREDATORY BUGS
There are no natural allies
Mycodiplosis oidii (predatory mosquito)
EFFECTIVE PRODUCTS TO ELIMINATE THIS DISEASE
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• Conduct regular monitoring to detect and eliminate early infestations.
• Use horticultural oils during the egg or larval stage to control populations.
• Disinfect pruning tools and equipment to prevent the spread of the disease.
• Apply specific insecticides following local recommendations.
• Promote biological control using natural enemies such as parasitic wasps.
• Maintain adequate hygiene in the garden and eliminate infested branches and shoots.
Recommendations
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