When a reaction increases heat is that endothermic or exothermic, and is it a chemical or physical reaction?

Exothermic, chemical reaction

Explanation:

Exothermic reaction gives off heat (temperature increases) as a product. It is also a chemical reaction that releases energy through light or heat.

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary