Desert locusts (Schistocerca gregaria) are normally solitary insects, but in crowded conditions, they undergo physical and behavioral changes and become 'gregarious', clustering in swarms that can ...

FOR the past three years an organised effort has been made by the Governments of the South African colonies to destroy the swarms of locusts that from time to time invade the cultivated districts ...

A huge plague of locusts is wreaking havoc on the Italian island of Sardinia in the worst insect invasion in more than 60 years, local media report. Large swarms are destroying crops and invading ...