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Clark Pest Control has grown to be the West's largest pest management company with branch offices throughout California and in the Reno, Nevada area.

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Sudden Oak Death and Douglas Fir Trees


Helene Wright
California State Plant Health Director
Animal and Plant Health Inspection Service
United States Department of Agriculture


‘Tis the season for holiday greenery and plants-poinsettia plants, festive wreaths, holly to decorate the table and mistletoe to hang in the doorway. And, of course, who could forget the staple of Christmas decorations...the tree.

This year, getting a tree may present a challenge for Californians who cross the border into Curry County, Oregon. Whether your family holiday tradition is to fell your own tree, a la Chevy Chase in "National Lampoon's Christmas Vacation," or whether you prefer the freshness of a recently-cut tree from Oregon, there are some things to be aware of this year.

Douglas fir trees, one of the most popular Christmas tree varieties, can be infected with Phytophthora ramorum, otherwise known as Sudden Oak Death (SOD). This invasive fungus can affect a variety of plant and tree species with Sudden Oak Death, which causes plants and trees to wither and die. Sudden Oak Death likely spreads through infected plant material, or spore laden rainwater and soil. Moist, cool, windy conditions are thought to spread the pathogen by dispersing spores from the leaves of hosts. Many of California's plants and trees could be negatively impacted by SOD, so a quarantine has been set at the California-Oregon border.

Trees coming from Curry County, Oregon into California must have one of two things: a sticker showing the tree has passed federal or state inspection and is free of the Sudden Oak Death pathogen, or a U.S. Forest Service permit proving it is from an uninfected area. The United States Department of Agriculture, California Department of Food and Agriculture and the Oregon Department of Agriculture are working together to stop the spread of Sudden Oak Death through Christmas trees.

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Pest Movement


By Guest Blogger:  
Keith V. Birkemeyer 
ProBest Pest Management
Gilbert, AZ

In my former life I had a chance to meet with many PMP's usually on the Western half of the US and we frequently would discuss Brown Recluse Spiders. I always had people telling me they were bitten or had seen numerous Brown Recluse spiders wherever they lived. If you ever looked at the bell curve they reside mainly in Texas. I always tell the story that with the modern age comes the ease of movement - that is as we travel so do pests. In Arizona we have a Brown spider that is related to the Brown Recluse but not as aggressive.

That brings me to the real story - movement of pests. This week the Arizona and California Departments of Agriculture issued a quarantine for citrus. They have found the Asian Citrus Psyllids which can carry Huanglongbing disease. All they know for now is that they may be getting infested from someplace - "whether we've got some nursery site that's producing these insects", "we just don't know, it's a complex problem". Within the last 2 months 2 mice have been aboard planes, here is one story I once was on a trip and when we landed the Flight Attendant came down the aisle spraying permethrin for mosquitoes, apparently Fiji didn't want mosquitoes. Another article recently suggested that bedbugs might be hanging out in moving vans; it does make sense - if you had a previous person moving and they had bedbugs they would probably fall off inside the van. Bedbugs can hitch a ride anywhere and on anything, from school backpacks to used furniture. So before you pick up that nice looking sofa on the side of the road - think of the real cost!

So I guess this brings me to the lesson of today - insects have adapted and will continue to adapt to us. Rodents, cockroaches rely on us pretty much these days but don't let that stop you; we need to continue to battle with these pests. If you must store items in a storage unit take precautions, if you can check your home monthly for any signs of pests. If you are in the Pest Control field don't assume anything - the insect or spider may have traveled to that place so I think it is wise to know about all kinds of insects because you never know when they will appear on your doorstep  or your customer's doorstep.

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California Invasive Pests...whats this all about!


You have probably read through sever posts of ours and keep seeing this come up "Invasive Pests", so what does this mean?

Invasive Pests as explained by the State of California and the USDA

Invasive pests are in California and they sure are hungry. Invasive pests are any kind of damaging animals, insects, plants or plant diseases that are not native to the State. Invasive pests can rapidly expand their populations and feed on local plants, crops and other species. As they compete with native species for resources, they cause damage to local ecosystems and wreak havoc on crops and local plant life.

So how the heck do they get here?
Usually through cargo container, travelers that travel by car, bus and even planes.

What are these Pests?
Red Imported Fire Ant, Mexican Fruit Fly, Asian Longhorned Beetle, Oriental Fruit Fly and the Light Brown Apple Moth are just to name a few.

What are the long term effects?
These invasive pests will destroy our crops, our parks and woodlands, and throw off our ecosystems.

To learn more about California invasive pests, please visit the official site:

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Pest Control, Salinas Ca. - Branch Spotlight


This weeks branch office spotlight is our Salinas branch. Our Salinas branch offers Pest ControlTermite controlRodent and Bird Exclusion and even Lawn and Garden services. 

The Salinas branch, just a stones throw from scenic Carmel By-The-Sea and Monterey (approx. 8 miles from the Pacific Ocean), proudly services Salinas and its surrounding communities. This branch is open from 6AM - 8PM Monday - Friday, Saturday-Sunday 8AM - 5PM, and offers same-day solutions to accommodate your busy schedule. Contact Clark TODAY.

To find out additional information about this branch visit Pest Control Salinas

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California Pest Control - Holiday season fun!


Last month here at Clark, we ran a fun series of articles named "The four days of Halloween". This series had a great response since, we all love movies and each day we featured a creepy movie where pests were involved. With the holidays approaching, we will be running the 10 days of Christmas, featuring pests in Holiday movies.

We hope all of our viewers had a wonderful Thanksgiving and stay tuned for the 10 days to the holiday movie series! 

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San Diego - Adult Asian citrus psyllid Trapped


Quarantine of citrus trees extended

Posted: 10:39 PM PST on Wednesday, November 18, 2009
The Press-Enterprise

The California Department of Food and Agriculture has extended a quarantine of citrus tree parts into several areas of Riverside County, including the entire Coachella Valley, to control the spread of a pest that kills citrus trees.

State regulators initiated the quarantine after an adult Asian citrus psyllid was trapped in the Valley Center area of San Diego County. The pea-sized psyllid spreads a disease called the Huanglongbing disease, more commonly known as "greening."

The disease ruins the fruit and eventually kills the tree. No cases of greening have been reported in California, according to a statement.

Department spokesman Steve Lyle said the Valley Center discovery prompted extending the quarantine about five miles north of the county line to include areas of Temecula and east to the Aguanga area.

Also, several of the pests have been detected in Imperial County, Lyle said.

"Because we detected them this far north in Imperial County, the protocol dictated extending the quarantine into the entire Coachella Valley," Lyle said.

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