Lavender2
Garden Addicted
Recent news from the University of Minnesota -
U of M - August 1, 2010
This is also widely used on potted trees, including some fruit trees.
Just one more reason to search for organic sources ... and ask a lot of questions about what you are buying ... :/
I will be sending this link to the local nurseries ...
U of M - August 1, 2010
Native plants grown in greenhouses and transplanted outside may contain high levels of imidacloprid which may kill pollinators.
There are multiple ways that plants in urban landscapes can contain imidacloprid -contaminated nectar, since it is commonly applied in the landscape for many pests (Krischik and Davidson 2004) and many greenhouse plants are treated with prior to sale and transplanting.
.... (much more info in the article link)The greenhouse rate used on perennial landscape plants states that 300 mg AI/ 3gallon pot with 1 plant can be used. This is an 800 times higher rate for corn and 2700 times higher rate for canola. Consequently, greenhouse and urban landscapes use higher concentrations of imidacloprid, which are often reapplied and used at peak flowering, which results in higher concentration being translocated directly to flowers. Consequently, these levels have great potential to alter behavior or kill pollinators and beneficial insects more than the seed treatment Gaucho where most of the research has been done.
This is also widely used on potted trees, including some fruit trees.
Just one more reason to search for organic sources ... and ask a lot of questions about what you are buying ... :/
I will be sending this link to the local nurseries ...