There are several preventative measures that will be helpful to get rid of fungus gnats. Since fungus gnats thrive under moist conditions, especially in decaying vegetation and fungi, let potting soil dry out between waterings. Fungus gnats often become a problem in autumn and winter when plants are brought indoors.
A chemical messenger is any compound that serves to transmit a message. A chemical messenger may refer to: 1  Hormone, Long range chemical messenger. 2  Neurotransmitter, communicates to adjacent cells.3  Neuropeptide, a protein sequence which acts as a hormone or neurotransmitter. chemical messenger may refer to: 1  Hormone, Long range chemical messenger. 2  Neurotransmitter, communicates to adjacent cells. 3  Neuropeptide, a protein sequence which acts as a hormone or neurotransmitter.
Types of toxicity [edit]. There are generally three types of toxic entities; chemical, biological, and physical: 1  Chemical toxicants include inorganic substances such as, lead, mercury, hydrofluoric acid, and chlorine gas, and organic compounds such as methyl alcohol, most medications, and poisons from living things. Chemical toxicants include inorganic substances such as, lead, mercury, hydrofluoric acid, and chlorine gas, and organic compounds such as methyl alcohol, most medications, and poisons from living things.