Science Into Practice - Testing for viroid infection in tomato seeds
10 Feb 2012
Columnea latent viroid (CLVd) is one of nine viroids known to affect tomatoes.
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Plane anthracnose: Hard-to-see brown patches can start to develop underneath leaf buds.
Columnea latent viroid (CLVd) is one of nine viroids known to affect tomatoes.
Tobacco whitefly (Bemisia tabaci) is a pest of global economic importance on many crops. In the UK, it is a notifiable pest subject to a policy of eradication if found on propagators' premises and plants moving in trade.
Crops may need closer monitoring after research finds browning associated with CMD viruses.
Pyrethrum is an effective insecticide with low toxicity to humans, but it is rapidly destroyed by ultraviolet light.
Tuta absoluta, an increasingly important pest of tomato crops in southern Europe, is extremely damaging and currently controlled by intensive chemical pesticide applications. But such products would not be compatible with biological control agents.
Conservative MP George Freeman has called for more research into the causes or poor bee health.
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