Archive · 26 Jan 2026
Whitefly Infestation Devastates India's Coconut Crop
A tiny insect called the rugose spiralling whitefly is causing big problems for coconut farmers in South India.
This pest sucks sap from coconut trees, leaving a sticky mess that turns leaves black and stops the trees from growing properly.
Farmers have been struggling with this problem for over a decade, and it's making them lose money because their trees produce fewer coconuts.
The government has tried different ways to control the pest, like using special traps and friendly insects that eat the whitefly, but these methods haven't worked well in the fields.
Farmers are frustrated because they don't have good solutions, and some are even using banned chemicals out of desperation.
The problem is getting worse because of climate change, which helps the whitefly reproduce faster.
Scientists say that to fix this problem, all farmers in an area need to work together and use the same methods at the same time.
Without this teamwork, the whitefly keeps coming back.
Rugose spiralling whitefly is causing severe yield losses in coconut crops across South India.
The pest was first detected in India in 2016 but symptoms were observed earlier in the 2010s.
Coconut is a central crop in South India, with over 2 million hectares cultivated in four states.
Government-recommended control methods like sticky traps and neem spray have not been effective in the field.
Farmers are facing financial losses and some are using banned chemicals due to lack of effective solutions.
- Who
- Farmers in South India, particularly in Kerala, Karnataka, Tamil Nadu, and Andhra Pradesh
- What
- Rugose spiralling whitefly infestation causing severe yield losses in coconut crops
- When
- First detected in India in 2016, with symptoms observed earlier in the 2010s
- Where
- South Indian states, primarily Kerala, Karnataka, Tamil Nadu, and Andhra Pradesh
- Why
- The whitefly coats leaves with sticky honeydew, causing black sooty mold that blocks photosynthesis, weakens plants, and reduces yields
- Pest
- Rugose spiralling whitefly (Aleurodicus rugioperculatus)
- Affected Crops
- Coconut, banana, palm, and others
- First Detected in India
- 2016 in Tamil Nadu
- Coconut Growing States
- Kerala, Karnataka, Tamil Nadu, Andhra Pradesh
- Coconut Area in 2023-24
- Nearly 2 million hectares in four southern states
- Coconut Production Decline
- Over 10% since 2016
- Productivity Reduction
- 14% since 2016
- Control Methods
- Yellow sticky traps, neem spray, water jetting, Encarsia release