Weather: Especially in the spring, there are days when this activity will not work because the insects will not be active if it is raining, too cloudy, and/or too cool (under 10 o C). A back-up plan ...

It involves both applied research to improve the technique and develop it for new pest insects; and the transfer of the SIT package to Member States through field projects so that these can benefit ...

In the process, the wasp transfers pollen from flower to flower ... geographic spread of plants over a wide area -- generally, insects will travel further to find a mate than to find a meal.