How to deal with aphids on protected ornamental crops

摘要

With their pear-shaped bodies, long antennae and a pair of rear-end siphunculi (also described as "exhaust pipes"), aphids are one of the most easily recognised and common glasshouse pests.All aphid species are sap-sucking. Some have a wide host range while others are restricted to specific plants or plant types. In most aphid species, females can produce live young without mating and they lay fertilised eggs. Live young can mature to adults in as little as one week. The variety of ways by which aphids can wreak plant damage—distorting and reducing growth, transmitting viruses and producing sticky honeydew—also contributes to their economic importance as pests.