Araña roja
Red Spider
Tetranychus Urticae
Pathogen:
Insect
Type:
Risk to the plant:
INTERMEDIATE
DESCRIPTION
WHO CAUSES IT?
Tetranychus urticae, commonly known as the red spider, is a mite that belongs to the family Tetranychidae. It is a pathogen that affects a wide variety of plants, including tomatoes. This mite has a short and prolific life cycle, with the ability to reproduce quickly under optimal conditions. During its development, it goes through the stages of egg, larva, two nymph stages and adult, with each phase lasting approximately 5 to 20 days depending on temperature and humidity.
SYMPTOMS
Spider mite, caused by Tetranychus urticae, is a common disease of tomato. General symptoms include yellow Taches on the leaves, discoloration, leaf curling, and eventually defoliation. The main symptoms are:
- Yellow Taches on the upper part of the leaves.
- Progressive discoloration of the leaves.
- Rolling of the leaves downwards.
- Presence of fine cobwebs on the underside of the leaves.
TEMPERATURE AND HUMIDITY
25°C - 30°C
60% - 70%
HOW IS IT SPREAD?
Direct contact, Wind, Agricultural equipment, Animal vectors
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• ABAMECTIN 1.8% [EC] P/V
• ABAMECTIN 1.8% [EW] P/V
• ORANGE OIL 60g/L [ME] P/S
• PARAFFIN OIL (CAS [8042-47-5]) 54.6% [EW] P/V
• SULFUR 70% [SC] P/V
• SULFUR 72% [SC] P/V
• SULFUR 80% [DP] P/P
• SULFUR 80% [SC] P/V
• SULFUR 80% [WG] P/P
• SULFUR 80% [WP] P/P
• SULFUR 98.5% [DP] P/P
• SULFUR 99% [DP] P/P
• CIFLUMETOFEN 20% [SC] P/V
• PHENPIROXIMATE 5.12% [SC] P/V
• PHENPIROXIMATE 6.24% + HEXITIAZOX 3.12% [SC] P/V
• HEXITIAZOX 10% [WP] P/P
• HEXITIAZOX 25% [SC] P/V
• TERPENOID MIXTURE QRD 460 15.23% [EC] P/V
• MILBEMECTIN 0.93% [EC] P/V
• SPIROMESIFEN 24% [SC] P/V
• Tebufenpyrad 20% [WP] P/P
Authorized treatments in organic farming
• ORANGE OIL 60g/L [ME] P/S
• PARAFFIN OIL (CAS [8042-47-5]) 54.6% [EW] P/V
• SULFUR 70% [SC] P/V
• SULFUR 72% [SC] P/V
• SULFUR 80% [DP] P/P
• SULFUR 80% [SC] P/V
• SULFUR 80% [WG] P/P
• SULFUR 80% [WP] P/P
• SULFUR 98.5% [DP] P/P
• SULFUR 99% [DP] 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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- Maintain good crop hygiene by eliminating weeds and remains from previous harvests.
- Use irrigation practices that maintain soil moisture but avoid waterlogging.
- Introduce natural enemies such as predatory mites to control Tetranychus urticae populations.
- Apply vegetable oils or insecticidal soaps to reduce mite populations.
- Carry out crop rotations to interrupt the life cycle of the pathogen.
- Regularly monitor plants to detect the presence of mites early and take preventive measures.
Recommendations
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