Geographical spread of phytophagus Halyomorpha halys and prospects for biological defense.
Halyomorpha halys (Stal, 1855) is a Hemiptera, Pentatomidae, an invasive polyphagous insect native to the Far East. Since 1998 it has been detected in the USA and in some European countries, including Italy.
It is a dangerous bug for agriculture that in recent years has expanded its area of spread and increased the intensity of damage.
This species is extremely polyphagous and can cause extensive damage to fruit orchards (especially Rosaceae) and other agricultural crops (especially Fabaceae).
The brown marmorated stink bug (BMSB) is a sucking insect that uses its proboscis to pierce the host plant in order to feed. This feeding results in the formation of dimpled or necrotic areas on the outer surface of fruits, leaf stippling, seed loss, and possible transmission of plant pathogens.