Fungicides are soil fumigants that are used to decrease amount of inoculum in the soil. Insecticides are sometimes used as well as fumigants if infestation has already occurred. Certain fumigants, nematicides, herbicides, and dipyridyls are also common in cases of pesticide poisoning. Strawberries depend on large applications of fumigants containing pesticides. This segment marketed brominated performance products, flame retardants, fumigants, and organometallics. Fumigants are also applied directly to rodent burrows. Fumigants in grain storage bins are commonly used for insect control. It may be found as a contaminant in soil fumigants containing 1,3-dichloropropene. Strawberries and tomatoes are the two crops with the most intensive use of soil fumigants. Some manufacturers also offer fumigants containing sulfuryl fluoride. Chemical fumigants, particularly CO, are also used. Chemical fumigants also destroy all stages of "G. mellonella" and are economically convenient. Killing agents, preservation agents, rehydrating agents, and fumigants are all important to record. Fumigants are usually applied before planting and subsequently after emergence.