Protect caterpillars as UK’s moth population plummets, urge charities

The Guardian - World NewsEN 3 min read 100% complete by Helena Horton Environment reporterMarch 4, 2026 at 07:00 AM

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medium article 3 min

The Royal Horticultural Society (RHS) and the Wildlife Trusts are urging UK gardeners to tolerate caterpillars in their gardens to help reverse the decline in moth populations. Moth numbers in the UK have fallen by 33% since the 1960s due to habitat loss, climate change, and pollution. The charities emphasize the importance of moths as a food source for other wildlife and encourage gardeners to appreciate caterpillars, even if they nibble on plants. Instead of pesticides, the RHS recommends physical barriers, manual removal, and pruning to protect prized plants. Gardeners are also encouraged to plant native trees and shrubs that caterpillars enjoy, such as willow, honeysuckle, and foxgloves, to support moth populations.

Key Entities & Roles

Key Player Opposition Context

Vicki Hird 40% Helen Bostock 50% United Kingdom ×260% Wildlife Trusts ×270% Royal Horticultural Society ×580%

Keywords

caterpillars 100% moth population 90% gardeners 70% climate breakdown 60% biodiversity 60% habitat loss 60% native trees 50% pesticide-free 50% garden wildlife 50%

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Positive

Score: 0.30

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Source

The Guardian - World News

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90%

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United Kingdom

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caterpillars moth population gardeners climate breakdown biodiversity habitat loss native trees pesticide-free garden wildlife

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