Tag Archives: pollinators

Jumping Jehoshaphat, the grasshoppers have arrived!

In the news…

I’m wondering if anyone is following the grasshopper outbreak in Oregon? If you don’t know about this, I’ll fill you in and include some links. Perhaps we need to round up our “mean-ole, hummingbird murdering mantids” (EXTREME SARCASM HERE!) and send them south to help out. Just kidding. If you read through the attached list of sources, you’ll see in one where they’ve now determined the mantids don’t have much of an impact on controlling grasshoppers (Fries, 2021).

If they are so bad (and from historical reports, they can indeed reach proportions on the scale of a Biblical plague), what do we do about them? Why is there such an outbreak?

Grasshopper populations cycle periodically, but it’s thought they are worst when conditions are dry. One theory is that a fungus that controls populations isn’t viable in these conditions and only works when we have damper weather.

Historically, control methods have been pretty toxic – everything from arsenic bait to other drastic measures – all environmentally hazardous. If you review old agricultural journals, records of exploding grasshopper populations conjure up images of something you’d see in a horror movie, only it was real. Historical photos exist of a landscape stripped of vegetation; bare fields and trees. Handles were eaten off wooden farm implements and fenceposts were eaten too. Crops were lost, people starved. There’s a reason it’s called a PLAGUE. 🦗🦗🦗

So, this is happening now in Oregon. Aphis is coordinating aerial spraying of wide swaths (millions of acres ) of land with an insecticide called diflubenzuron. Studies have shown diflubenzuron reduces populations of bees, butterflies, beetles, and many other species of insects. Aquatic invertebrates consumed by endangered fish and trout are also vulnerable (Xerces Society, 2022). Xerces Society has a federal lawsuit against Aphis to fight this grasshopper managment strategy. Application of this insecticide directly threatens endangered species like yellow-billed cuckoos, black-footed ferrets, bull trout, Ute ladies’-tresses orchids, Oregon spotted frogs and Spalding’s catchflies which are present in multiple states in which the insecticide spraying program operates (Xerces, 2022).

What can we do if we don’t spray? Well, I would encourage folks to look at the studies about the benefits of eating grasshoppers. They aren’t much different than shrimp. At a minimum, they could be netted, dried, and manufactured into feed for poultry, fish, and swine. We have to stop the madness. Dumping chemicals is only bringing our apocalypse closer. We won’t survive. The grasshoppers probably will. 🦗🦗🦗🦗🦗🦗🦗

References and Further Reading

Brown, M. 2021. Forget cicadas. Drought-stricken West is getting plagued by voracious grasshoppers. LA Times. https://www.latimes.com/world-nation/story/2021-06-24/western-drought-brings-voracious-grasshoppers

Cannings, R.A. 2007. Recent range expansion of the Praying Mantis, Mantis religiosa Linnaeus (Mantodeaz Mantidae), in British Columbia. Journal of the Entomological Society of British Columbia. 104 https://journal.entsocbc.ca/index.php/journal/article/view/101 or https://www.researchgate.net/publication/237474147_Recent_range_expansion_of_the_Praying_Mantis_Mantis_religiosa_Linnaeus_Mantodea_Mantidae_in_British_Columbia

Fries, J. 2021. Praying mantises alive and well in Okanagan. Kelowna Daily Courier. https://www.kelownadailycourier.ca/news/article_86bd5fc4-f18b-11eb-8614-d328402eb90c.html

Handschuh, D. 2021. The Hoppers are Here. Increase in number of grasshoppers noted across the Okanagan. Castanet. https://www.castanet.net/news/Vernon/343375/Increase-in-number-of-grasshoppers-noted-across-the-Okanagan

Larson, T. 2014. The Grasshopper Plague. Ghosts of North Dakota. https://ghostsofnorthdakota.com/2014/03/16/the-grasshopper-plague/

Morgan, Adam. 2014. IN 1937, Colorado Guard used flamethrowers and explosives against plague of locusts. National Guard. https://www.nationalguard.mil/news/article-view/article/575751/in-1937-colorado-guard-used-flamethrowers-and-explosives-against-plague-of-locu/

PARKER, J. R., R. C. NEWTON and R. L. SHOTWELL. 1955. Observations on mass flights and other activities of the migratory grasshopper. USDA Tech. Bull. 1109. 

Parker, J.R., Newton, R.C., and R.L. Shotwell. 1955. Observations on Mass Flights and Other Activities of the Migratory Grasshopper. U.S. Department of Agriculture https://play.google.com/store/books/details?id=KrMXAAAAYAAJ

Reinhardt and Ganzel. 2003. Grasshoppers were a plague during the 1930’s depression. Wessels Living History Farm, Nebraska. https://livinghistoryfarm.org/farminginthe30s/pests_02.html

Rush, C. 2022. ‘Biblical’ insect swarms spur Oregon push to fight pests. Info.News.CA https://infotel.ca/newsitem/us-destructive-grasshoppers/cp1339611467

Thistle, J. 2008-2009. ACCOMMODATING CATTLE: British Columbia’s “Wars” with Grasshoppers and “Wild Horses”1.  BC Studies; Vancouver Iss. 160, (Winter 2008/2009): 67-70,72-91,156 https://www.proquest.com/scholarly-journals/accommodating-cattle-british-columbias-wars-with/docview/196882595/se-2 or British Columbia’s “Wars” with Grasshoppers and “Wild Horses”1https://ojs.library.ubc.ca › article › download

Xerces Society. 2022. Lawsuit Launched Challenging USDA’s Failure to Protect Endangered Species From Insecticide Sprays Over Millions of Acres in U.S. West. https://xerces.org/press/lawsuit-launched-challenging-usdas-failure-to-protect-endangered-species-from-insecticide

We can EAT them! 

Imathiu, Samuel. 2020. Benefits and food safety concerns associated with consumption of edible insects. NFS Journal 18: 1-11. https://doi.org/10.1016/j.nfs.2019.11.002 https://www.sciencedirect.com/science/article/pii/S235236461930046X

Lopez-Santamarina A, Mondragon ADC, Lamas A, Miranda JM, Franco CM, Cepeda A. Animal-Origin Prebiotics Based on Chitin: An Alternative for the Future? A Critical Review. Foods. 2020 Jun 12;9(6):782. doi: 10.3390/foods9060782. PMID: 32545663; PMCID: PMC7353569. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7353569/

Shah AA, Totakul P, Matra M, Cherdthong A, Hanboonsong Y, Wanapat M. Nutritional composition of various insects and potential uses as alternative protein sources in animal diets. Anim Biosci. 2022 Feb;35(2):317-331. doi: 10.5713/ab.21.0447. Epub 2022 Jan 4. PMID: 34991214; PMCID: PMC8831828. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8831828/

Stull, Valerie. 2019. Bugs for our bugs? Edible insects and the microbiome. Global Soil Biodiversity Initiative. https://www.globalsoilbiodiversity.org/blog-beneath-our-feet/2019/2/27/bugs-for-our-bugs-edible-insects-and-the-microbiome

Swanson, S. 2019. This is a story about eating grasshoppers. Nevada Public Radio. Desert Companion Essay. https://knpr.org/desert-companion/2019-12/story-about-eating-grasshoppers

Yawaza, M. 2021. The History of Chapulines: ICE faculty and staff taste test edible grasshoppers from Mexico. ICE. https://ice.edu/blog/chapulines-mexican-food

Recipes

Grasshopper Tacos https://www.quericavida.com/recipes/grasshopper-tacos/35a7e337-7fb5-4ef3-b58b-50b7403b72ea

Recipe: Teriyaki Skewers with grasshoppers https://www.insectgourmet.com/teriyaki-skewers-with-grasshoppers/

Save the Bees! Which Bees? 🐝🐝🐝

My former bee keeping days!

To Bee or Not to Bee

Nostalgia reigns over the little European (now re-named Western) honey bee (Apis mellifera).  We think of honey in terms of “liquid gold” or perhaps reminiscent of A.A. Milne’s Winnie the Pooh, gobbing it all over himself as he dips his paw into the honey jar.   Honey bees are indeed important pollinators, and the economic driver of the honey industry. You can stick the almond industry in along with them because, “without honey bees, we wouldn’t have almonds, right!”  More on this if you keep reading.  

If you delve into how we use honey bees for pollination, it’s hard not to be sympathetic to the plight of the honey bee.  Going back to the almond industry, I can tell you it isn’t pretty. Here, and in other monoculture systems, the honey bee must collect pollen and nectar from one, single, solitary food source. Then that bee and her hive family are loaded onto a truck with many other hives, and delivered to yet another industrial monocrop to do the same thing again.  Maybe this time it’s an apple orchard, or soybeans, or sunflowers.  In every instance though, the nutrient deficiencies can’t be ignored.  Honey bees need a diverse array of nutrients just like every other living organism.  They aren’t healthy because of how we are keeping (and exploiting) them (McGivney 2020).  

The honey industry brought in $321.22 million U.S. dollars in 2021 (Statistica, 2022). They are packed and stacked in boxes, driven across the country, unloaded in unfamiliar territory, hunger staved off temporarily with a jar of high fructose corn syrup, or sugar water (if they’re lucky), while they familiarize themselves with the new surroundings, and are off to work immediately.  They are unpaid transient workers. Valued, and needed, but treated much like the migrant workers we count on to move about the country picking our food crops.  

Of course, we are told, the nation won’t eat if we don’t have bees!  Partly, this is true.  The part that needs clarifying is, Which bees exactly do we need to pollinate our food crops?  

I’ll disclose here that I am a former honey bee keeper.  Former being the point!  I quit.  I became enlightened.  Not by the unrealized dreams of liquid gold, not from stings received, but rather by the dings of my brain firing at the connections I started to make from my observations and from searching for scientific literature that supported what I was observing.  

When I was working on my MS in Entomology and Nematology from the University of Florida, I took a beekeeping course as part of my curriculum.  Part of the requirement for the course was to shadow other beekeepers and set up a hive of my own.  I enthusiastically set off on these tasks. Keeping my own hives was an incredibly fascinating experience.  

Here in our island community, I mentored high school students who set up a hive at the community garden and gave several public talks to various organizations as part of their senior project.   I’ve acted as a consultant for other beekeepers, loaned out beekeeping equipment, suits, literature, and several extension agencies have used photos I took of honey bee queens and varroa mites in their educational materials.  

Varroa mite on European honey bee (Apis mellifera) – photo by Cynthia Brast-Bormann

Keeping honey bees was fascinating.  Yes, I was stung, but it was mesmerizing to watch them working.  At one place that I lived, I kept them just outside of my daughter’s bedroom, and to open the window and smell the honey bees was like entering heaven.  It was intoxicating.   

As to my success in keeping honey bees on San Juan Island, I can tell you it’s a mixed bag.  My longest-lived colony survived three years.  Mostly, later in the season, the bees would be attacked by wasps, and the hives completely raided.  Honey bees died in winter from a lack of food and reduced numbers.  Bees ball up together inside the hive in winter. If the population is small, they just can’t generate enough heat to stay warm.  

For a few years, I bought new packages of bees.  That was also a mixed bag.  Some years, the queen died right away.  Other packages of bees came with varroa mites.  Most packaged bees for purchase are available after they’ve already been at work in other parts of the country pollinating in crop systems where the climate is warmer. They’re worn out and not necessarily healthy.   

You see, many people selling bees to hobby beekeepers also make money from renting bees for crop pollination.  The queens are reared separately and artificially inseminated. When your package of bees is packed for shipping, they plop the newly fertilized queen into the box with the tired little workers who have been to California, Nebraska, Iowa, or who knows where else before they arrive for you to pick up.  As these packaged bees became more and more expensive, my “hobby” was yielding the most expensive, tiny jar of honey you could ever imagine.   

There were multiple other things I observed when keeping bees.  Like they would gang up on the poor, solitary bumble bee trying to feed on the single dandelion in the yard and kill it.  Not the dandelion.  They killed the bumble bee.

Honey bee killing bumble bee – photo by Cynthia Brast-Bormann

They actually killed a lot of bumble bees from my observations.  I didn’t like it.   I also quickly noted that with our cool spring climate, the honey bees didn’t like to come out of the hive until sometime in May or June, way after all the trees had flowered.  Honey bees don’t like to fly unless the temperature is over 50 degrees Fahrenheit.  I was making a lot of sugar water for them.  In case you haven’t noticed, the price of sugar is becoming quite expensive.

That’s another thing.  Sugar water is nutrient poor.  Honey bees, or pretty much any other organism will never thrive on sugar water alone.  It would be like giving your kid cans of Pepsi or Coca Cola every day and nothing else.  Of course, they would not be healthy.  They’d probably have a shortened life and die before they became a teenager.   Honey bees, humans, and pretty much every other organism on the planet needs a diversity of nutrients to survive.  Who out there remembers taking a Fred Flintstone vitamin tablet as a kid?  Well, there’s a minimum daily requirement for more than humans.   Honey bees need a diversity of flowers, trees, mineral rich soil, and clean water to thrive.  They also need to collect anywhere from 20-130 lbs per year of pollen and 120-900 lbs per year of nectar, to sustain ONE hive (Goulson, 2003).  

So, don’t we have those things out here in the San Juans?  Hmmm.  Let’s see.  Spring temps don’t warm up until after fruit trees, forest trees, and lots of other native shrubs have already flowered or set off pollen.  Our soils are poor and deficient in certain minerals like selenium. There’s a LOT of bedrock, but obviously we have some parcels that are exceptions.   Summers are hot and dry.  I doubt even in a good season, there’s enough pollen and nectar to support all the hobby hives we have now in the islands.

If you’ve lived here for a few seasons, you might note that summer going into fall we have a dearth of vegetation.  Pretty much the only wild plants blooming are our non-native Tansy and California Poppies.   Of course, the noxious weed folks urge us to pull all the Tansy.  It’s toxic.  We should do our best to remove it when possible because if you are keeping bees (and continue to do so after reading this), you don’t want Tansy pollen or nectar in your honey.  It will damage your liver.

Back to making my point.  What bees are we supposed to save?  1. Honey bees? or 2. Those other bees that don’t give honey, but might actually be better suited for pollinating things we have in the San Juans? 

If you pick 2, you’re trending along with me.   As an entomologist, I can suggest that supporting native bee species will be much healthier and sustainable for our fragile island ecosystem.  Why?  Well, native bees are already suited for this geographic climate.  Bumble bees, Andrena bees, Mining Bees, Leafcutter bees, along with flies, wasps, beetles, moths, ants, and even spiders are all pollinators that work well in our island habitat.   In fact, flies are probably one of our most effective early pollinators for fruit trees in the San Juans.  

But won’t honey bees pollinate too?  What about my garden plants or my orchard trees?  Well, again, it’s really not an optimal climate.  If you are still holding out, I can offer additional research that might be convincing.  While not particularly applicable to the San Juans, since as I’ve already stated, honey bees aren’t going to be flying when our orchard trees are blooming, current research in mainland agro-ecosystems is indicating that wild bees actually increase fruit set in apple orchards (Mallinger & Gratton, 2014), and strawberries pollinated by wild bees are larger than strawberries pollinated by honey bees (MacInness and Forest, 2019).  That’s only two papers, but if you take time to go through and read these, look at their references.  You’ll find additional citations indicating similar findings in other studies.  

What if we ignore everything you’ve written here and keep ordering packages of honey bees?  

Good question. Certainly, you are within your right to order honey bees and keep them.  Some folks may be determined to try and raise bees in an attempt to get honey.  All I can say to that is good luck!  I personally have switched from using honey to using agave as a sweetener, or quit using sweeteners altogether.  It’s a personal choice, but also motivated by my own economics as well as my concern for preserving a diverse and sustainable population of invertebrates and conserving diverse and healthily functioning ecosystems.   Also, please don’t interpret my position as “anti-agriculture.”  That wouldn’t be fair.  We have to eat, but I do believe in progress and making better choices as the planet becomes more populated.  There are a LOT of people to feed. We need to figure out how to do this sustainably, without displacing our diversity of wildlife or injuring the planet’s ability to support life.  

It’s a fact that native bees are being displaced in ecosystems under pressure from loss of habitat and competition from managed honey bees.  In their 2018 literature review, Hatfield et al., state that “honey bees displace native bees from flowers, alter the suite of flowers native bees visit, and have a negative impact on native bee reproduction.”  Citing Anderson & Anderson 1989; Paton 1990, 1996; Wills et al. 1990; Dafni & Shmida 1996; Horskins & Turner 1999, Hatfield et al., continue by stating, “honey bees potentially impact native bee species by removing available supplies of nectar and pollen,” essentially outcompeting native pollinators who are left without enough food to survive and reproduce. 

How many hobby bee keepers are in the San Juan Islands?  Are there enough to impact native populations of pollinators?  Doubtful we could come up with an accurate number or assessment.  It would be great to have a count and map of locations of honey bee hives in the islands.  The Washington State Department of Agriculture does have a requirement for beekeepers to register their hives annually with the state (WSDA 2022).  This isn’t set up to harass beekeepers, but to be able to contact you should there be an issue of concern, ranging from disease to threats from non-native species such as the Asian Giant Hornet (Vespa mandarinia), a species the state is tracking to prevent further spread.  If hobby beekeepers are adhering to state laws by registering their hives, scientists will be better at assessing the impact of honey bees on populations of native pollinator species, especially under the unknown parameters of a warming earth.  

What are my recommendations?  Well, I’ve shared why I quit keeping honey bees.  We have a small orchard and keep a little vegetable garden where my husband helps me grow some strawberries, tomatoes, peas, salad greens, and a few other things.  The past few seasons, because of my affinity for bug viewing over gardening, I planted some things near my garden plants that I knew would attract pollinators.  For instance, I have Nepeta varieties of catmint near my tomatoes.  Those purpley-blue flowers on the catmint attract all sorts of pollinators who also happen to visit my tomatoes, peas, strawberries, and more.  

Judging from the diverse collection of bugs (and birds) in our garden/orchard area, I don’t believe we need any honey bees at all for pollination.  I love watching the varied native bees, especially the fuzzy bumble bees that pollinate our tomato plants.  Oh, one last thing!  These native pollinators aren’t out to defend a colony like the social honey bees.  This means they are WAY less likely to sting you.  Oh, I’ve sustained a sting or two from an occasional bumble bee, but that was because they were hanging out on my blue yoga pants, and I accidentally squeezed them when I was squatting down to pull some weeds.  Bugs love the colors blue, purple, and black.  I learned my lesson.  Now I wear blah, sand-colored clothes when I’m gardening.  

Thanks for reading.  I hope you will consider my points.  This is not meant to be an indictment against honey bees or honey bee keepers, merely a perspective on the impacts we may have on our island ecosystem in keeping honey bees.  The bumble bees, and other native pollinators will appreciate not being displaced.  They’re worth saving, and thank you for recognizing their role in our food web. 

p.s.  If you aren’t a beekeeper, but you’re interested in helping native pollinators on the island, establishing gardens with diverse species of native plants will help ensure they have a bounty of healthy and nourishing food sources available.  You can check out Washington Native Plant Society at https://www.wnps.org , WSU’s Master Gardener Foundation of San Juan County at https://www.mgfsjc.org , or the Xerces Society – https://xerces.org/publications/plant-lists/pollinator-plants-maritime-northwest-region for native species lists.  

References:

Goulson, D. 2003. Effects of introduced bees on native ecosystems.  Annual Review of Ecology, Evolution, and Systematics 34:1-26. 

Hatfield, R.G., S. Jepsen, M. Vaughn, S. Black, E. Lee-Mäder. 2018. An Overview of the Potential Impacts of Honey Bees to Native Bees, Plant Communities, and Ecosystems in Wild Landscapes: Recommendations for Land Managers. 12pp. Portland, OR: The Xerces Society for Invertebrate Conservation.  

MacInnis, G, Forrest, JRK. 2019.  Pollination by wild bees yields larger strawberries than pollination by honey bees. J Appl Ecol. 56: 824– 832. https://doi.org/10.1111/1365-2664.13344

Mallinger, R.E. and Gratton, C., 2015.  Species richness of wild bees, but not the use of managed honeybees, increases fruit set of a pollinator-dependent crop. J Appl Ecol. 52: 323-330. https://doi.org/10.1111/1365-2664.12377

McGivney, A. 2020.  ‘Like sending bees to war’: the deadly truth behind your almond milk obsession. The Guardian. https://www.theguardian.com/environment/2020/jan/07/honeybees-deaths-almonds-hives-aoe 

Statistica – https://www.statista.com/statistics/191993/value-of-honey-production-in-the-us/

Washington State Department of Agriculture https://agr.wa.gov/services/licenses-permits-and-certificates/summary-descriptions/apiary-registration

It’s all connected! Know your Ecosystem – Butterflies and Moths Love Ocean Spray (Holodiscus discolor)

We all love butterflies and moths, right?

Did you know Ocean spray is one of our native plants? Lots of folks don’t even know this and label it as “invasive,” or a “fire hazard,” then rip it out of the ground to replace it with non-native ornamentals or worse, leaving the formerly healthy, forested understory devoid of vegetation.

Image from – http://nativeplantspnw.com/ocean-spray-holodiscus-discolor/

Did you know?

Here’s a bit of historical trivia – Ocean spray is sometimes called Indian arrowwood because Native Americans made use of its straight hardwood branches for arrow shafts. They also used oceanspray for treating viral and skin diseases. Other names for this plant are Holodiscus discolor, ironwood or creambush. There is actually a novel phenolic component in the plant called Stilbene a Xyloside that has been associated with varied biological and medicinal activities.

Some reasons I’d like you to appreciate Ocean Spray….

  1. It is a larval host plant to some of our native butterflies and moths. These include the beautiful Pale Swallowtail (Papilio eurymedon), Spring Azure (Celastrina sp.), Lorquin’s Admiral (Limenitis lorquini), and Gray Hairstreaks (Strymon melinus). One particularly notable one here on our island is the delicate Fairy Moth (Adela septentrionella). Calscape (California Native Plant Society) lists 14 confirmed species of Lepidoptera associated with Ocean Spray (and 23 as likely) for a total of 37 species native to the state of CA. I could not find published studies for this in WA state, but link the Calscape page here https://calscape.org/plantleps.php?hostsloc=california&species=Holodiscus+discolor
  2. Ocean spray provides cover and forage for wildlife. Birds, small amphibians, and deer rely on native plant species like Ocean Spray that make up part of the forest understory and are a component of a healthy ecosystem. Fire-scaping may be on your mind, but one way around this is to look at installing adequate water cachement around your home to help keep vegetation from drying out and dying in late summer and fall. We want to live in the forest, but if we remove the native understory, we risk altering the landscape even more and losing these beautiful creatures!
  3. Ocean Spray flowers provide pollen and nectar for native bees! 🐝
Fairy Moth – https://bugguide.net/node/view/26749

Read more about Ocean Spray here:

https://www.researchgate.net/publication/222005193_A_stilbene_xyloside_from_Holodiscus_discolor_bark

http://nativeplantspnw.com/ocean-spray-holodiscus-discolor/

https://blogs.oregonstate.edu/treetopics/2016/07/14/shrubs-wildlife-oceanspray/

Thanks for reading!