Pyridine ether of formula (1)In agriculture, the variables are defined according to the description, process and intermediary quotient of design (1) pyridine alcohol,The ingredients containing these substances and their use as herbicides to control harmful plants, and a method of controlling undesirable vegetation, including allowing effective quantities of at least one formulation (1) herbicide in plants, seeds and / or habitats. 1. Claim 1: pyridine alcohol with the characteristics of formula (1)；a. The variable has the following meanings: R1 is h or halogen； R2 is h, halogen, CN, no.8322；NH.8322；CF°8323O C（=S）NH832222；Cn, cc22218331, No. 8323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323318323-alcox-cc221；SR8310，No. 8311； No. 831222；No. 8310； No. 8310；8310；； s (o) 83222；； r831181 or nr.8310；； s (o) 83222；； r831221；a. For r8310s hydrogen, cc221； - alcox-c833217c831832627-okilow, c8327c833316a-alcox-c8327c833316a-alcoy-c832626-alcoy, di (c833212188331833183326a-okiluo)； a. C82321ng-c82321c82323236cc8326cc8326cc8326cc823236cc833236cc832682328231c8231c8231c8231c8231c8231c83231c83231c8323182323231832323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323383838383838383838383832323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232 - asphalt - c83316a3 - c831318326a1 - asphalt, c83321a3-833126a1 - asphalt - c831316a1 - asphalt, c833226a1 - asphalt - c8383316a1 - c83626 - asphalt；a. C83321 No. 8
