Divide your greenhouse into sections and ensure you spend a predetermined amount of time in each area, starting with plants in entry ways where pests often come in. Look over the entire crop to evaluate uniformity, overall colour and height. Check for plants that look different from others, and if any troubled areas stand out, start looking for pests. Inspect both the upper and lower leaf surfaces as well as the undersides. Monitor for pest populations by using biological traps such as Whitefly and Tuta traps. These should be placed at regular intervals in the greenhouse Frequent scouting affords farmers the opportunity to detect and manage problems before damage occurs. It is recommended that scouting is done at least once a week and more often when conditions are conducive for problem pests. To determine the success of a chemical application, scout after 3 to 4 days after application.
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