Posts Tagged: plants
Washington State University and UCCE - Ventura County, respectively
Horticultural myths, found extensively in print and online resources, are passed along by uninformed gardeners, nursery staff, and landscape professionals. Occasionally myths are so compelling that they make their way into Extension publications, used by Master Gardeners as educational resources. In this article we deconstruct seven widespread gardening myths by way of reviewing research-based literature. We also provide scientifically sound alternatives to these gardening practices and products. Our hope is to arm Extension educators with the educational resources necessary to battle misinformation that ranges from the merely useless to that which is actively damaging to soils, plants, and the surrounding environment.
Home gardeners and landscape professionals are a rapidly growing audience for extension educators as they seek science-based information to support their activities. However, many are not familiar with current research and cannot assess whether the information they find in print, on the internet, or through social media is accurate. In addition, some products and practices are meant for agricultural production, not for maintaining home gardens and landscapes. The combination of misinformation and misapplied information means that this audience risks damaging their plants and soils through overuse of fertilizers, misuse of pesticides, and poor management practices.
The field of urban horticulture, including arboriculture, is expanding with new insights about plants and soils in residential and public landscapes. However, there are few Extension educators who have an academic background in environmental horticulture and may be as confused as the public about what constitutes sound, science-based recommendations.
The authors of this article are state Cooperative Extension educators and researchers with many years of experience in translating science for use by home gardeners and landscape professionals. Our goal is to assist other Extension educators by providing reliable information for them to share with the gardening and landscaping public.
The purposes of this literature review article are:
- to identify some common beliefs homeowners and landscape professionals have about managing landscape plants and soils;
- to provide a brief, science-based explanation on why these beliefs are not accurate;
- to provide links to published, peer-reviewed information that supports the explanation and can be distributed to clientele; and
- to suggest strategies based on current and relevant applied plant and soil sciences for managed landscapes.
And here is the article:
Garden Myth Busting for Extension Educators: Reviewing the literture on Landscape Trees
You've seen honey bees buzzing past you to reach a good nectar or pollen source. But there's much...
What's in store for this honey bee? It is heading for an Anisodontea sp.'Strybing Beauty.' Image taken in pollinator garden in Vacaville, Calif. (Photo by Kathy Keatley Garvey)
It's a fair. It's a party. It's a pollinator party. It's the Bay Area Bee Fair in Berkeley. And...
Black-tailed bumble bee, Bombus melanopygus, nectaring on nectarine blossoms. (Photo by Kathy Keatley Garvey)
A yellow-faced bumble bee, Bombus vosnesenskii, nectaring on Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)
A black-tailed bee, Bombus californicus, nectaring on blanket flower, Gaillardia. (Photo by Kathy Keatley Garvey)
A bumble bee, Bombus vosnesenskii, and honey bee, Apis mellifera, sharing a purple coneflower, Echinacea purpurea. (Photo by Kathy Keatley Garvey)
I recently came across a library of all kinds of images of pests, diseases and crops. It has lots of entries, such as “Bees of the United States”:
And images of citrus pests and diseases and even different cultivars of citrus, under “Citrus ID”:
'Xie Shan" citrus cultivar
And even a few avocado images:
But there's a heck of a lot more.
Clicking on the different links and their volumes of images will take some time because of the shear number. The images have been collected as a public data base for not only academics, but also for the general public. At present, it's not too easy to search, but it's worth a look.
Here's a list of the different categories that can be perused:
U of georgia
This is a great website to view plant nutrient symptoms by plant or by nutrient. It is of ornamental plants, but hey, once you can see it on one plant you will something very similar on avocado, lemon, apple, almond, lychee or whatever alphabetic fruit you work with. Kudos to University of Florida. Of course once you see what iron deficiency looks like, you'll be able to identify it on most other plants:
Below is Boron toxicity from a grower who got too excited about correcting B deficiency,
boron toxicity citrus