Large windows, screened against insects, let in cooling breezes during the heat of summer.

It is believed that some plants developed caffeine in their leaves as a natural protection against insects.

The company claimed it was proof against fire, heat, humidity and insects.

They say the discovery might provide clues that would enable them to protect crops against insects.

But clothes should be covered with a barrier against dirt and insects.

It is systemic with particular efficacy against sucking insects and has a long residual activity.

Therefore they need good protection against insects when they sleep.

There was a molecular structure similar to a herbicide against insects.

Others see the new technology being used to control exactly when a plant generates defenses against insects or viruses.

You should take precautions against insects in all areas of Brazil.