Check out this valuable information from the Canadian Cancer Society on safer, healthier alternatives to toxic non-essential pesticides



www.pesticidefreeforlife.ca



Monday 16 June 2014

Check out this story on a pesticide study taking place at the University of Regina with the help of students at Miller High School in Regina. For the original story visit here

U of R begins pesticide research study

 
A group of university professors, high school students and teachers are hoping that a new research project will lead to the reduction, and ideally elimination, of pesticide use on the University of Regina campus.

"I would like to eliminate them because any pesticides that we have on our landscape here at U of R, they're tracked into the university and then they're circulated," said Tanya Dahms, a professor of biochemistry at the university.

On Saturday, students from Miller Comprehensive Catholic High School and university staff began collecting data - such as plant species diversity, insect counts and soil composition - from two plots of grass measuring 100 cm by 50 cm in the academic green area behind the Kinesiology Building.
One of the plots will be treated with pesticides whereas the test plot will be treated naturally through a plant health care model.

That alternative model involves spraying the plot with compose tea and reintroducing bacteria into the soil. Pesticides reduce bacteria in the soil, which is vital for healthy soil structure and decomposing plants so nutrients can be released into the soil.

The test plot will also be mowed less and not as short as the rest of the lawn. Cutting grass short contributes to weed development, Dahms explained.

In the fall, data will be collected again from the plots and compared to Saturday's baseline results in order to form a comparison.

Dahms wants to see the research expanded into more plots for study so eventually
researchers will be in a position to recommend the natural care model to university administrators as the normal practice for lawn care. One of the drawbacks is that the plant care model can be more costly than pesticide use because additional labour is required to pull weeds.

For Heather Haynes, the research project is a great opportunity for 14 of her science students to get handson experience in the field and in the lab.

"This is inquiry learning at its finest. We have a hypothesis, we have the tools and we have our brains. Let's put them all together and let's see if we can find out some answers," said Haynes, a teacher at Miller Comprehensive Catholic High School.

"Nobody who is working on this research team - whether you're a professor or a teacher or student - knows what the outcome is going to be," she said.

"It's science. We're all acting as scientists all together. So, clearly, what more does a science teacher
want for her kids?"

-Brett

Tuesday 10 June 2014

Be Pesticide-Free: Managing Dandelions Naturally



What did one dandelion say to the other dandelion? Take me to your weeder! Have a problem with dandelions? Weeding them can be easy. 
 
Preventative Controls
Sometimes you just have to give it some elbow grease. Digging is key since dandelions have a simple yet deep tap root system.

1. Weed early in the spring. Pull dandelions when they first pop up. The roots will not be very extensive and you can get them before they spread. Remember to extract the whole root.
2. Be consistent. Don’t let the roots take over.  You will have to dig throughout the season.
3. Regularly mow, rake or pick the heads off your dandelions (before they go to seed) throughout the season to prevent maturation and distribution of dandelion seeds.
4. Discard the roots in a bucket and throw them into the garbage. Dandelions can take root everywhere. Composting dandelions isn’t recommended because some seeds may not fully compost, and could re-grow in your lawn or garden.
5. Use Digging tools to access the roots that don’t require too much bending.  

Organic Controls
There are many pesticide-free alternatives that can be used on dandelions. 

1. Maintain a healthy, enriched soil.
2. Pour boiling water over the affected areas to kill the plant, and then remove the dead plant so that it does not re-bloom.
3. Spot treat with a 5-10% solution of vinegar.  
4. Sheet mulching: If dandelions are covering a large area in your yard, you can cover the plants to prevent the photosynthetic process needed to sustain the plant. 
5. Corn Gluten Meal (CGM) can be used as a preventative measure.  CGM is a protein produced from the by-product from the corn milling process that can be found at most garden centres. When spread over a lawn or garden area, CGM will suppress germination.  Remember, it will also prevent grass seed growth; do not spread CGM directly after over-seeding your lawn or your grass seeds will not germinate. 


To learn more about managing your dandelions naturally, please visit: http://www.environmentalsociety.ca/main/wp-content/uploads/2013/02/Fact_dandelion_2011.pdf   

-Brett