"parasitoids" - 1 õppematerjal

Inglise keel unit 5 answers

increases with appropriate time lag; decreases at spraying times (end of June / beginning of October);  final peak for predator numbers is the lowest; max 2 (ii) less food available / less strawberry plants; low temperature / frost; other predators; disease / parasites; ref to parasitoids; AVP; R spraying idea max 2 (c) (i) biological (pest control); 1 (ii) insecticides, are harmful to other organisms / may kill natural predators to the pest; reduces species diversity / disrupts food chains; many insecticides are, slow to biodegrade / long lasting;