the rational application of a combination of biological, biotechnological, chemical, cultural or plant-breeding measures whereby the use of chemical plant protection products is limited to the strict minimum necessary to maintain the pest population at levels below those causing economically unacceptable damage or loss, erinevate tõrjeviiside ühendamine ökoloogiliste põhimõtete alusel, vastavalt igale konkreetsele juhtumile

the time that has elapsed since death