At the moment am in the process of preparing my small farm for planting. Am interested in different products that spinach carrots lettuce managu n purple passion fruits. . My soil is black cotton soil but I will do it under irrigation. The problem I have is insects. Which cut the seedling after shooting to the soil. I would love to grow my prodtucts organically. What should I use to prevent them from insect especially "ngiria" in my mother tongue kikuyu?