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My partner and I have started a small production of 2000 plastic trays of 2710 sq.cm. Some trays are now full of adult beetles. We are respecting the ''7 mating pairs (14 beetles) per 100 sq.cm. in 20 gr. wheat bran'' as suggested by GringoJay.
However, we are wondering how often we should harvest the eggs/bran? Since each time we will harvest, we will keep the bran so it make a full tray of larvas (≈5500 larvas)
In fact, we are wondering if the beatles' egg-laying is constant throw their life cycle?
Thank you so much for your help!