In our orchards, we manage over 500 mango trees across multiple varieties. Pest and disease management is our biggest ongoing challenge. We broke down everything we have learned about identifying, preventing, and treating mango problems.
Major Mango Pests
1. Mango Hopper (Jassid)
- Appearance: Small (3-5mm) green or brown wedge-shaped insects
- Damage: Sucks sap from flower panicles, causes flower drop, secretes honeydew leading to sooty mold
- Season: February-April (flowering season)
- Economic Impact: Can reduce yield by 50-70%
- Treatment: Imidacloprid spray at flower bud stage, neem oil every 10 days, remove weeds under trees
2. Fruit Fly (Bactrocera dorsalis)
- Appearance: Adult is wasp-like, orange-brown, 7-8mm. Larvae are white maggots inside fruit.
- Damage: Female lays eggs under fruit skin, larvae eat the flesh causing premature fruit drop and rotting
- Season: May-August (fruiting season)
- Economic Impact: 10-30% fruit loss if uncontrolled
- Treatment: Methyl eugenol traps, protein bait sprays, fruit bagging, collect fallen fruit daily
3. Mango Mealybug
- Appearance: White, cottony, oval-shaped insects clustered on stems and fruit
- Damage: Sucks sap, causes leaf yellowing, secretes honeydew → sooty mold
- Season: January-March (nymphs climb trees in winter)
- Treatment: Apply sticky bands around trunk in December, release ladybird beetles (biological control), neem oil spray
4. Mango Scale Insect
- Appearance: Tiny, flat, shell-like bumps on leaves and stems (1-3mm)
- Damage: Sucks sap, causing yellowing and leaf drop
- Season: Year-round, worse in dry weather
- Treatment: Horticultural oil spray, neem oil, pruning heavily infested branches
5. Mango Stem Borer
- Appearance: Beetle larvae bore into trunk and branches, leaving sawdust-like frass
- Damage: Tunnels weaken branches, can kill entire limbs
- Season: Monsoon (July-September)
- Treatment: Inject kerosene or insecticide into bore holes, seal with mud. Remove severely damaged branches.
Major Mango Diseases
1. Anthracnose (Black Spots)
- Cause: Fungus Colletotrichum gloeosporioides
- Symptoms: Black/brown spots on leaves, flowers, and fruit. Fruit develops sunken dark lesions.
- Conditions: Thrives in humid, rainy weather (monsoon)
- Prevention: Copper fungicide spray before flowering, open canopy pruning, avoid overhead irrigation
- Treatment: Mancozeb or carbendazim fungicide spray at 14-day intervals
2. Powdery Mildew
- Cause: Fungus Oidium mangiferae
- Symptoms: White powdery coating on leaves, flowers, and young fruit
- Conditions: Cool, humid nights with warm days (February-March)
- Prevention: Sulfur-based fungicide spray at flower bud stage
- Treatment: Triadimefon or hexaconazole spray
3. Dieback / Tip Necrosis
- Cause: Fungus Lasiodiplodia theobromae
- Symptoms: Branch tips die back, turning brown/black. Can spread to entire limbs.
- Treatment: Prune affected branches 30cm below visible infection, apply copper paste to cuts
4. Mango Malformation
- Cause: Fungus Fusarium mangiferae
- Symptoms: Flower panicles become bunchy, deformed, and do not set fruit. Vegetative malformation causes compact, clustered growth.
- Treatment: Remove and burn affected panicles, apply NAA (naphthalene acetic acid) in October
Organic Pest Management at MMA Farms
| Method | Target Pest/Disease | Application |
|---|---|---|
| Neem oil (3ml/L) | Hoppers, mealybug, scale | Spray every 10-14 days during flowering |
| Sticky trunk bands | Mealybug nymphs | Apply in December, replace monthly |
| Methyl eugenol traps | Fruit fly males | Hang 4-6 per acre from April |
| Copper oxychloride | Anthracnose, dieback | Spray before monsoon (June) |
| Bordeaux mixture | General fungal prevention | Spray after pruning (October) |
| Pheromone traps | Monitoring pest levels | Year-round, check weekly |
we use an Integrated Pest Management (IPM) approach — organic methods first, chemical treatments only when pest pressure exceeds economic thresholds. This ensures our mangoes are safe to eat while keeping our orchard productive.
Frequently Asked Questions
What is the most common mango pest?
Mango hopper (Idioscopus spp.) is the most economically damaging mango pest worldwide. These tiny green insects suck sap from flower panicles, causing flower drop and reduced fruit set. A single severe hopper infestation can reduce yield by 50-70%.
How do I get rid of mango fruit flies?
Use a multi-pronged approach: hang protein bait traps (methyl eugenol + insecticide) in trees from April, collect and destroy fallen fruit daily, bag developing fruits on the tree with paper bags, and apply soil drenching insecticide to kill pupae in the soil.
What causes black spots on my mango?
Black spots are usually anthracnose, a fungal disease (Colletotrichum gloeosporioides). It thrives in humid conditions, especially during monsoon. Prevent with copper fungicide spray before flowering, good air circulation through pruning, and avoid overhead watering.
Is neem oil effective for mango pests?
Yes, neem oil is effective against mango hopper, mealybug, scale insects, and as a mild fungicide. Spray 3ml neem oil per liter of water every 10-14 days during flowering. It is organic, safe for beneficial insects when used correctly, and leaves no harmful residue on fruit.
How do I prevent mango tree diseases?
Prevention is key: prune for open canopy (air circulation), remove fallen leaves and fruit (break disease cycles), apply copper fungicide before monsoon, avoid waterlogging, sanitize pruning tools between trees, and choose disease-resistant varieties when planting.
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MMA Farms
Premium Pakistani mangoes from Multan. 100% carbide-free, farm to table freshness. Follow us on Instagram for orchard updates.