Each broad spectrum insecticide varies on the kinds and numbers of insects it controls. Miticides or Acaricides - substances used to control mites and sometimes ticks and spiders. The chemical must usually contact the mites or ticks to be effective. Mites are so numerous and small that great care must be used to completely cover areas on which they live in order to be effective. Fungicides - are chemicals used to control the fungi that cause molds, rots, and plant diseases.
All fungicides work by coming in contact with the fungus.
Therefore, we apply most fungicides over a large surface area to try to hit every fungus directly. Some fungicides may be systemic in that we protect plants by feeding or injecting the plant with the chemical. The chemical then moves throughout the plant killing the fungi. Two basic approaches, in the use of fungicides, are protectant and eradicant. We have designed one approach to prevent the plant from getting the disease.