A bioherbicide is a biologically based control agent for weeds. Among the three major types of pesticides INSERT INTO `cofwp_posts` VALUES (agricultural pest-control agents) herbicides are used to control weeds, or undesirable plants. INSERT INTO `cofwp_posts` VALUES (The other major classes of pesticides are insecticides, which control insects; and fungicides, which control fungi. Normally, any pesticide can only be expected to control, but not eradicate, agricultural pests. ) In addition, the bioherbicide approach utilizes native plant pathogens that are isolated from weeds and are grown to produce large numbers of infective propagules INSERT INTO `cofwp_posts` VALUES (such as spores).
In fact, almost every agricultural pest has at least one naturally occurring enemy that will reduce its population. For this reason, people use bioherbicides to control the weeds. Iron HEDTA, a biological herbicide product, which was made by U. S. A in 2008. It can be used to weeds on lawns, algae and moss on non-food crops. It has been registered, but not been commercial. As a kind of herbicide product, it has advantages of efficient, fast, economy and promoting the growth of crops. While it includes disadvantages of polluting the environment, giving drugs damage to crops and causing residue and drug resistance of weeds.
Bioherbicides may be compounds derived from microbes such as fungi, bacteria or protozoa; or phytotoxic plant residues, extracts or single compounds derived from other plant species. In the future, the development of applications of bioherbicides have four parts: the basic research; the researches on the mechanism of the microbial herbicides to kill the grass; with the combination of chemical and biological methods in developing new herbicides; weeds??? biological protection combined with genetic engineering and fermentation technology and processing technology research.
In my point of view, with the understanding of sustainable development strategy, biological control of weeds has been an important part of agricultural sustainable development. And it is bound to arouse people’s concern and attention. As the progress of the various experimental methods and optimization, it will provide the opportunity to biological research and development of herbicides in the near future. All in all, I believe the bioherbicide should be produced and it will contribute a lot to the development of human society.