Glasshouse Pests

With the outside temperatures still regularly below 8c, the opportunities to open up the greenhouse are few and far between. Inside the greenhouse, the temperature stays between 5c and 20c creating the perfect environment for whitefly and greenfly to breed at an alarming rate, so before their numbers increase to uncontrollable levels, Ali sprays them using a contact/systemic pesticide. This pesticide should kill the pests on contact and any that manage to avoid it will be killed as they feed off the plants, it says on the label that it should control the pests for six weeks!