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An insect growth regulator (IGR) is a chemical insecticide that kills insects indirectly by disrupting their life cycles. [1] The term was initially proposed to describe the effects of juvenile hormone analogs. [2] Although the term "insect growth disruptor" more accurately describes the actions of IGRs, it did not become widely used. [1]
Pyriproxyfen is a juvenile hormone analog (IRAC group 7C) and an insect growth regulator. [7] It prevents larvae from developing into adulthood and thus rendering them unable to reproduce. [8] In the US, pyriproxyfen is often marketed under the trade name Nylar, [9] and is one of two active ingredients in Advantage II.
Prothallus of the tree fern Dicksonia antarctica (note new moss plants for scale) Spore-bearing plants , like all plants, go through a life-cycle of alternation of generations . The fully grown sporophyte , what is commonly referred to as the fern , produces genetically unique spores in the sori by meiosis .
Growth regulator may refer to: Growth hormone, stimulates growth in humans and other animals; Insect growth regulator, used as insecticides;
Transfluthrin is a fast-acting pyrethroid insecticide with low persistency. It has the molecular formula C 15 H 12 Cl 2 F 4 O 2.. Transfluthrin can be used in the indoor environment against flies, mosquitoes, moths and cockroaches.
Ponazuril (), sold by Merial, Inc., [1] now part of Boehringer Ingelheim, [2] under the trade name Marquis (15% w/w ponazuril), is a drug currently approved for the treatment of equine protozoal myeloencephalitis (EPM) in horses, caused by coccidia Sarcocystis neurona.
Chlormequat is an organic compound with the formula ClCH 2 CH 2 N(CH 3) + 3 that is used as a plant growth regulator. It is typically sold as the chloride salt, chlormequat chloride [1] (C 5 H 13 Cl 2 N), a colorless hygroscopic crystalline substance that is soluble in water and ethanol. [2] It is an alkylating agent and a quaternary ammonium salt.
Paclobutrazol (PBZ) is the ISO common name for an organic compound that is used as a plant growth retardant and triazole fungicide. [2] [3] It is a known antagonist of the plant hormone gibberellin, acting by inhibiting gibberellin biosynthesis, reducing internodal growth to give stouter stems, increasing root growth, causing early fruitset and increasing seedset in plants such as tomato and ...