Abstract: The invention relates to biodegradable particles and compositions comprising biodegradable particles comprising at least one active ingredient. At least one active ingredient may be inside, throughout, or outside of the biodegradable particle. The at least one active ingredient may be at least one of a pesticide, a dye, an arthropod attractant, an arthropod repellent, an arthropod nutrition supplement, an enhancer of arthropod pest resistance, an enhancer of plant arthropod resistance, an enhancer of plant sprouting and development, a food supplement for mammal consumption, or a combination thereof. The invention further relates to methods for preparing such biodegradable microparticles and compositions, methods of using such biodegradable microparticles and compositions, and kits comprising such biodegradable microparticles and compositions.