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Comparison of effort in 2016-17 with earlier seasons

for each weed type (see comments below)

for the Reserve only, for the Neighbouring paddocks only and for the Total Effort.

Reserve Only

For month by month comparisons of weeding effort against previous seasons for each weed type, see
the weed type monthly history

 

Weed type Comparative
Effort
(relative to last season)
      Likely reasons
African Lovegrass much less Effort confined to critical areas inside the Reserve this season.
St. Johns Wort similar Spraying of St. John's Wort has been restricted to the Reserve this season because of reduced volunteer availability and the same amount of effort as last season was achieved.
Blackberries less There are no recurrent Blackberry infestations left on the Reserve, just small new plants that pop up from year to year.
Briars less Briar numbers are lower this season, continuing the trend from earlier seasons.
Cootamundra wattle much more Cootamundra wattles across the Reserve were treated systematically for the first time in several years.
Saffron thistles more The prevalence of Saffron Thistles on the Reserve is similar to last season but they have received more attention on the Reserve by prioritising it above the neighbouring paddocks.
Horehound much more Horehound is decreasing in prevalence across the Reserve and neighbouring paddocks in response to treatment in previous seasons and is only treated systematically every second season, as shown by the effort pattern.
Verbascum much less Prevalence overall was less than last season, with V. virgatum being predominant. Combination of Verbascum control with St. John's Wort spraying also reduced the time spent.

non-Saffron thistles less Spear and Scotch thistles have not been as prevalent in the last three seasons as previously, although Winged Slender thistles have become more common and have absorbed much of the effort shown. There were signs of a small increase in Spear Thistles again towards the end of the season. In addition there are still a lot in the Extension that required bagging this season.
Paterson's Curse much more There was more Paterson's curse in evidence this season than last, which we attribute largely to the wet winter conditions. Nevertheless, there was much less than in earlier seasons and because treatment was largely by pulling the time required is greater than if it was suitable for spraying.
Capeweed more Capeweed is encroaching on parts of the Reserve along and around some of the tracks (particularly in the north of the Reserve) and attempts are being made to step up our effort to control it. The amount of effort that we have been able to devote to its control in the last two seasons is much less than required.
Exotic grasses (Serrated tussock, Chilean Needle grass) less Little effort to date this season.
Bathurst Burr   No effort to date this season.
Other woody weeds similar There are very few woody weeds (other than briars) left on the Reserve. Treatment is sporadic.
Nightshade about the same  
Miscellaneous broadleaf weeds less This category includes Hoary mustard, Prickly lettuce, fleabane, skeleton weed, flatweed, catsear, Tragopogon, etc. The amount of effort spent on these depends more on the resources available than the prevalence of the weeds. Grubbing teams this season have been busy on other things.

 

 

Bottom Pinnacle and North Kama only

Total Effort (Reserve plus Bottom Pinnacle plus North Kama)

year-on-year

 

 
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