Tag Archives: Insects

Beautyberry as insect repellant

Beautyberry, Callicarpa americana, proven insect repellant!

Barbara Pleasant wrote for Mother Earth News April/May 2009, Beautyberry Banishes Bad Biting Bugs: Researches are finding evidence that beautyberry, long used as a folk remedy, really does deter bugs such as ants, ticks and others.

In 2006, researchers at the U.S. Department of Agriculture’s Natural Products Utilization Research Unit in Oxford, Miss., found that extracts from beautyberry leaves could match DEET for repelling mosquitoes. The next year, experiments showed that the active ingredients from the leaves (callicarpenal and intermedeol) provided 100-percent repellency of black-legged ticks for three hours. In 2008, the four-person research team, headed by chemist Charles Cantrell in Mississippi and entomologist Jerome Klun in Maryland, published research that added fire ants to the list of pests repelled by essential oil distilled from beautyberry leaves….

Fresh green leaves, crushed and rubbed on people or pets, often repel insects for a couple of hours.

Looks like Charles L. Cantrell of U. Miss. has published several papers about this:

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Bee in okra flower, Okra Paradise Farms, 19 July 2012

This is how we get new okra to eat:

This is how we get new okra to eat

This is how we get new okra to eat
Picture by John S. Quarterman for Okra Paradise Farms, Lowndes County, Georgia, 19 July 2012.

I've seen on the okra blooms honeybees, bumblebees, and several kinds of wasps, all pollinating and making more okra.

-jsq

Organic Farming Promotes Biodiversity

Rob Goldstein writes in Conservation Maven:
A new study finds that organic farming promotes biodiversity compared to conventional agricultural practices. While past research has found similar results, this particular study is groundbreaking in that it detected ecological benefits from organic farming at both a local and a landscape level.

Researchers looked at the uncultivated, semi-natural borders between organic and conventional agricultural fields in Sweden. They found that the borders between organic fields had significantly higher plant species richness and abundance. The researchers hypothesize that this is likely due, at least in part, to the unintentional impact that herbicides can have on non-target species.

This is good news and not just for plants. Increases in plant species diversity likely trickle up the food chain benefiting the insects that eat plants (and the birds that eat insects).

It’s always good to see research validate what we see on the ground (pun intended).