Why do catch trays in ILTs need to be emptied regularly?

Catch trays in Integrated Pest Management (IPM) systems, particularly in indoor landscaping techniques (ILTs), serve a crucial function in controlling pest populations, specifically to monitor and manage the presence of pests like dermestids. Dermestids are a type of beetle known for feeding on organic materials, including plant matter and stored products. If catch trays are not emptied regularly, they can accumulate organic debris or pests, creating an ideal breeding ground for dermestids and other unwanted insects. By maintaining clean catch trays, you significantly reduce the risk of pest infestations, which supports the health of plants and the overall environment of the indoor space.

The other options, while they may have their own merits in different contexts, do not directly address the pest management goals associated with catch trays in ILTs. Regular maintenance of catch trays is essential for minimizing pest populations, making this choice the most relevant in the context of integrated pest management practices.