The non-winged forms of aphids are usually present in a crop before winged aphids are caught on yellow sticky cards. Hence, the importance of visual inspection for detection of this pest. Aphids may be observed on leaf undersides or on growing points where they shed small, white skins and excrete shiny, sticky honeydew droplets. Take appropriate action as soon as pests have been detected and accurately identified. Weed Control Remove all weeds from inside and immediately outside the greenhouse.
Weeds can be important sources for insects and mites on a year-round basis.
Hanging Baskets Never place hanging baskets of ornamentals over vegetable seedlings and transplants, as these will serve as an alternate source of pests. At this stage, practices recommended during the seedling stage should be continued. Such piles serve as sources for further infestations. Maintain good drainage to eliminate puddles and wet surfaces, as these provide ideal breeding sites for flies such as fungus gnats and shoreflies. Insect screening on a side vent.