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 Botanic Garden >> Gardening >  >> Question and Answer >> Plant Diseases

Pineapple Guava Leaf Curl and Vein Browning: Mites, Nutrients, and Neem

Likely Spider Mites

Leaf curl + brown vein patterning = spider mite feeding. Check leaf undersides for tiny moving dots, webbing.

Treatment

  • Neem oil spray (reapply after rain/irrigation).
  • Epsom salts (magnesium sulfate) soil drench to green foliage.

Organic Note

Atomic Grow would help but shipping to Mexico is costly. Neem is widely available.

Plant Diseases
Citrus Leafminer and Chewing Pests: Diagnosis and Management
Guava Leaf Curl: Grasshopper Damage and Organic Deterrent Combo
Indoor Lemon Tree Losing Leaves: Fungus and Possible Spider Mites
Peach Leaf Curl: Spring Management for Infected Trees
Claw‑Like Leaf Curl on Crabapple: Need a Photo for Diagnosis
Brown Spots on Maple Leaves: Phyllosticta Leaf Spot
Fiddle Leaf Fig Brown Tips: Soil pH, Compaction, and Fertilizer Check
King Palm Rusty Spots: Likely Scale, Send Photos
Cymbidium Brown Leaf Spots: Fungal Treatment and Prevention
Dracaena 'Janet Craig' Sunburn and Overwatering: Cut Back Hard
Garden Articles

Potted Mandarin Leaf Curl: Leaf Miner or Aphids

Troubleshooting Leaf Drop in Pineapple Guava (Feijoa)

Holly Yellowing and Gardenia Mites: Soil Test and Recheck Bugs

Honeysuckle Chlorosis in High Desert: pH, Not Iron, Is the Key

Solving Cotoneaster Webbing and Dieback: Webworms vs. Spider Mites

Single Brown Leaf on Young Phalaenopsis: Simple Fix

Brown Spots Spreading to Holes on African Violet Leaves: Likely Cold Water Damage

Plants

Garden Mum Fungal Crisis: Red Veins, Defoliation, and Aggressive Fungicide Protocol

Lilac Bacterial Blight: Brown-to-Black Leaves, Not Just Water Issues

Dracaena marginata Brown Leaf Edges: Light, Water, Fluoride Fixes

Diagnosing Brown Leaves on a Repotted Palm

20-Year-Old Maranta (Prayer Plant) Leaf Cycle: Water Quality and Humidity

Creative Garden Design: Budget, Time, Climate, and Professional Help

Identify and Control Common Garden Insect Pests

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