What's New in Biological Control of Weeds? Issue 71
In this issue
![Small white admiral caterpillar Small white admiral caterpillar with its ‘pier’.](https://oldwww.landcareresearch.co.nz/__data/assets/image/0011/84395/varieties/thumb200.jpg)
Honshu Butterflies
After a great deal of perseverance and skill, Quentin Paynter and his team have managed to pull off one of the scientific highlights of 2014.
![Cost graph Relationship between the cost of weed biocontrol programmes in New Zealand and the number of biocontrol agents released for novel targets and repeat programmes for the three species.](https://oldwww.landcareresearch.co.nz/__data/assets/image/0003/84396/varieties/thumb200.jpg)
How Much Do Biocontrol Projects Cost?
Being able to predict the cost of a weed biocontrol programme is an important part of improving the prioritisation of targets and success of projects.
![lantana leaf rust Plant infected with lantana leaf rust.](https://oldwww.landcareresearch.co.nz/__data/assets/image/0006/84399/varieties/thumb200.jpg)
Lantana Rust Releases to Begin
Lantana (Lantana camara) is considered one of the world’s 10 worst weeds.
![Initial measurements Initial measurements of a weed infestation will be made before agents are released to provide baseline information.](https://oldwww.landcareresearch.co.nz/__data/assets/image/0016/84400/varieties/thumb200.jpg)
Assessment Protocol
An important component of all biocontrol projects is assessing how successful they have been.
![Heavily galled broom Heavily galled broom at a release site in Hanmer Springs. Image - Rob Simons](https://oldwww.landcareresearch.co.nz/__data/assets/image/0017/84401/varieties/thumb200.jpg)
Autumn Activities
There are a few things you might want to fit in before the wind-down towards winter. We would be very interested to hear about what you find.
![Honshu white admiral Honshu white admiral.](https://oldwww.landcareresearch.co.nz/__data/assets/image/0010/84394/varieties/thumb200.jpg)
Changes to Pages
If you are keeping your copy of The Biological Control of Weeds Book up to date you might like to download the new or amended pages.