Japanese knotweed spraying taking place next week in the city

MANISTEE — Spraying to quell Japanese knotweed will take place on Aug. 8 and 9 at Veterans Oak Grove Drive in the City of Manistee.

The spraying will take place from 10:30 a.m. to 4 p.m. on Aug. 8, and from 12:30-4 p.m. on Aug. 9, according to Miriam Owsley, outreach assistant with the Northwest Michigan Invasive Species Network (NMISN) in Traverse City.

On July 19, the Manistee City Council approved an agreement with the Grand Traverse Conservation District for invasive plant control around Manistee Lake and on city-owned and private portions of Veterans Oak Grove Drive in Manistee.

Japanese knotweed, a non-native invasive plant introduced from Eastern Asia as an ornamental plant, spreads vegetatively, sprouts from fragments of root and stem material and is most aggressive on sites with natural or human disturbance such as streams and riverbanks, roadsides and construction sites.

The agreement calls for treatment along the whole of the road with certified pesticide applicators through the Michigan Department of Agriculture spraying a herbicide called Clearcast.

Owsley said Tuesday that the spraying will be done via backpack sprayers and the herbicide will be sprayed directly onto the plants.

A sign alerting drivers and pedestrians of the spraying will be provided by the City of Manistee along the road, according to Owsley.

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