Screen houses? You must be joking! I operate 1 hectare of net houses (screenhouses) for the past 3 years and our houses were infected by the tuta pest. There are known preventive measures and effective treatments but I have not seen any mentioned here. Yet, you are university professors but without connection to the actual farm operations. If only you could come out of your hallowed ivory tower and experience our pains and challenges. May be you might be relevant

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