Science 

Global insect decline may see ‘plague of pests’

Image copyright Getty Images Image caption Many species of butterfly are in retreat according to the review A scientific review of insect numbers suggests that 40% of species are undergoing “dramatic rates of decline” around the world. The study says that bees, ants and beetles are disappearing eight times faster than mammals, birds or reptiles. But researchers say that some species, such as houseflies and cockroaches, are likely to boom. The general insect decline is being caused by intensive agriculture, pesticides and climate change. Insects make up the majority of…

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Science 

Pests to eat more crops in warmer world

Image copyright Keith Ewing / CC BY 2.0 Image caption Wheat, a crop typically grown in cool climates, could be hit hard, say the authors Insects will be at the heart of worldwide crop losses as the climate warms up, predicts a US study. Scientists estimate the pests will be eating 10-25% more wheat, rice and maize across the globe for each one degree rise in climate temperature. Warming drives insect energy use and prompts them to eat more. Their populations can also increase. This is bound to put pressure…

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