Organiser Deborah McKenna launched the project last November.
"It was a success. Last year, we had 63 volunteers. I would like to exceed this number for this coming project."
She said the project was aimed at tackling the wilding conifers, which were overtaking the landscape.
"This means that in 10 years' time our next generation will not enjoy the view we currently have of the Wakatipu," she said.
Exotic conifers had no natural control in New Zealand and could grow to well above the natural tree line, which is between 900m and 1100m in Otago.
Ms McKenna said wildings invaded alpine and lowland areas and closed canopy could occur within 10 to 20 years.
They suppressed native vegetation and formed a monoculture. Once the canopy closed, very little native flora would survive because of lack of light and competition for water and nutrients, she said.
"There are many groups who are concerned and involved with changing this problem. However, the wilding conifers are growing faster than these groups can control them. Our community needs to come together as a collective to work for the future of our environment, our children and their children's enjoyment of the beauty that this site has to offer," she said.
She would be leading a group to pull out wilding conifers on Ben Lomond on March 20 and 21 from 9.30am.
Lunch would be provided, with a free ride up and down in the gondola.
"All you need to bring is your gardening gloves, cutting instruments and, of course, your strength and enthusiasm," she said.
"You do need to be fit. The day starts with an uphill walk of 1.5km and then the strenuous task of moving across steep broken terrain and at the end a walk back to the gondola, although, thankfully, most of that is downhill," she said.
Volunteers with a minimum of four hours' availability should contact Ms McKenna on 451 1000 or 021 953872.
The person to bring the most friends will win two adult passes to Ziptrek. Second prize is a dinner voucher.
