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Citrus guide

Dieback, fruit drop and weak roots.

Citrus stage by stage

Citrus orchards (lemon, lime, sweet orange, mandarin) often suffer from dieback, where branches dry from the tip back, along with fruit drop and declining trees. Roots and drainage are usually where the trouble starts.

Main growing areas: Maharashtra, Andhra Pradesh, Punjab, Gujarat and Madhya Pradesh.

  1. Flowering

    Depends on bahar (season)

    Water stress followed by irrigation triggers flowering. Even flowering gives an even crop.

  2. Fruit set

    After flowering

    Some drop is natural. Heavy drop follows stress or poor nutrition.

  3. Fruit growth

    Several months

    Fruit size and juice need steady water and nutrition.

  4. Rest

    Between crops

    Pruning dead wood and feeding the tree for the next bahar.

Common citrus problems

Problems farmers bring to us

  • Dieback of branches
  • Fruit drop
  • Yellowing leaves
  • Trees declining
  • Small fruit

What to check first

  • Check drainage and look at the roots.
  • Look for gummosis at the trunk base.
  • Check for zinc and iron shortage: yellow leaves with green veins.
  • Test soil pH; citrus struggles in very alkaline soil.

Read more

The Immunity formula for citrus

Immunity Citrus Special bottle

Immunity Citrus Special

Made for lemon, lime, orange and mosambi: dieback, fruit drop and weak trees.

Packs: 250 mL, 500 mL, 1 L, 5 L

Results differ from farm to farm with soil, weather, crop and management. Farmer experiences on this site are their own reports, not a promise of results.

Citrus farmers in their own words

Citrus questions

What causes citrus dieback?

Dieback has several causes: root rot and poor drainage, nutrient shortage, pests and old age. Treat the cause, not just the dry branches. See our citrus dieback guide.

Which Immunity product is for citrus?

Immunity Citrus Special, with Immunity Granules for the soil.

Send us your enquiry

Tell us your crop, the problem and your location, and send a photo if you can. Our team replies on WhatsApp or calls you with what to check, which product suits and where to buy it near you.

Bulk buyer, manufacturer or brand?

Need bulk supply, OEM or private label? Our business site has grades, specifications and export terms.