Us­ing di­ver­sity on weeds

The Big 6 of weed con­trol

Central and North Rural Weekly - - PLANT WEEK - PAUL MCIN­TOSH

THIS year WeedS­mart is

. tak­ing its an­nual flag­ship event WeedS­mart Week to the North­ern re­gion.

The event kicks off in Narrabri in New South Wales on Mon­day, Au­gust 20, with the WeedS­mart Fo­rum.

The theme is ‘Di­ver­sify and Con­quer - man­age weeds us­ing the BIG 6’. The WeedS­mart team is ex­cited to be fa­cil­i­tat­ing speak­ers from across the coun­try and pro­vid­ing farm vis­its to the top grow­ers in the re­gion.

Grow­ers and agron­o­mists will de­liver key mes­sages on us­ing di­ver­sity to con­trol weeds at a one-day fo­rum on Au­gust 20 at Locharba Sta­tion, Narrabri.

Farm vis­its will take place on Au­gust 21-22 and will give at­ten­dees the op­por­tu­nity to talk di­rectly to grow­ers and farm man­agers about their farm­ing sys­tems.

Please note, a seat on the bus for farm vis­its is guar­an­teed to those who have at­tended the fo­rum day.

The WeedS­mart team is look­ing for­ward to meet­ing ev­ery­one in Narrabri!

You can learn more about the event and pur­chase tick­ets by vis­it­ing weeds­mart.org.au.

As men­tioned above, WeedS­mart Week is shaped around the WeedS­mart Big 6. Here’s a break­down of the Big 6, which you can also read on­line and ac­cess fur­ther re­sources at weeds­mart.org.au/the-big-6

1. Ro­tate crops and pas­tures

Use dou­ble break crops, fal­low and pas­ture phases to drive the weed seed­bank down over con­sec­u­tive years.

2. Dou­ble knock to pro­tect glyphosate

Fol­low glyphosate with a high rate of paraquat to con­trol sur­vivors in a fal­low or pre-sow­ing sit­u­a­tion.

3. Mix and ro­tate her­bi­cide groups

Ro­tate be­tween her­bi­cide groups. Use dif­fer­ent groups within the same her­bi­cide mix. Al­ways use full rates.

4. Stop weed seed set Crop top canola, pulses and feed bar­ley (cur­rently un­der per­mit) in weedy pad­docks. Con­sider hay, brown ma­nure or long fal­low in high-pres­sure pad­docks. Spray top/spray fal­low pas­ture prior to the crop­ping phase.

5. Crop com­pe­ti­tion Adopt at least one com­pet­i­tive strat­egy (but two is bet­ter), in­clud­ing re­duced row spac­ing, higher seed­ing rates, east-west sow­ing and com­pet­i­tive va­ri­eties.

6. Har­vest Weed Seed Con­trol (HWSC)

Cap­ture weed seed sur­vivors us­ing chaff lin­ing, chaff tram­lin­ing, chaff carts, nar­row windrow burn­ing or in­te­grated seed de­struc­tors.

PHO­TOS: CINDY BENJAMIN AND CON­TRIB­UTED

ABOVE: Narrabri grain store. IN­SET: The Fox Fam­ily in­vited at­ten­dees to their farm at Mar­rar in 2017.

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