Many pests that threaten different crops are natural predators to each other, which helps to offset their impacts.

But now the land itself turns against the family as a severe drought threatens crops and livestock.

The raw products may carry disease or pests like the fruit fly, which can threaten American crops.

In the summer of 1987 Tigray was hit by a locust invasion, threatening crops.

There is the potential, they said, for genetic engineering to lead to the formation of new plant viruses that threaten crops across an entire region.

Poisoned meats have been used for centuries for killing off wolves, birds that were seen to threaten crops, and against other creatures.

In that city, flood waters threatened 21,000 acres of peanuts and other crops such as cotton and corn.

There, the nearby East Lake Tohopekaliga began to overflow, threatening property and crops.

Cotton fell after rain drenched farmlands in West Texas, where dry conditions threatened crops.

Sand threatens buildings and crops in Africa, the Middle East, and China.