I regularly feed my roaches fruits and vegetables once a week. Last week I tried feeding my roaches some left over pineapple. For some reason they did not consume the pineapple pieces and I noticed some dead roaches around my bins. Are there any food items that could be very harmful for roaches? I tried to google search but nothing came up because searches will just show diet suggestions for dubia roaches. My roaches are N.Cinerea(Lobster roaches) , G. Portentosa (Hissers) , E. Prosticus (Orange head roaches), B.Dubia, and B. Lateralis (Turkestan roaches).
So anybody got a list of food items that will be harmful for my roaches? I live in a tropical area so fruits and vegetables are very readily available. Tips and advice will be very much appreciated. TIA.