News & Tips

Bugs in Your Garden
Golden Northern Bumblebee Bombus fervidus

Male drones grow to ½ inch, workers to 3/4 inch and the queen to nearly one inch.

All of these bees are thick and hairy. The face and head is mostly black and there is a black band between the wing. The abdomen is black and yellow. The wings are smokey.

Unlike the honeybee, bumblebees have one or two spurs on the hind tibia.

Bumble bees possess three attributes that will help you to distinguish them from other bees : they are big, they are more furry than most other bees, and females transport pollen as a wet mass held in a “pollen basket” on the hind leg. The pollen basket of the hind pair of legs is broadened and concave like a shallow, elongate spoon. If empty, its polished surface can be seen reflecting light. Only the honey bee in our fauna has a similar pollen basket; all other bees that collect pollen carry it in a dense brush of hairs either on the hind leg or under the abdomen. Bumble bees are much more furry than the honey bee, the only other local bee that has a pollen basket.

Colonies breakup in the fall and only the young queens, now mated, remain to hibernate; all others perish. In the spring, after emerging from hibernating quarters in the soil or litter, the queen looks for a place to nest, which may be on or below the ground surface, under rocks, in a clump of grass, the abandoned nest of a mouse or bird, and makes preparations for her first brood. Egg cells are constructed, usually of pollen in the case of the first brood, and one egg is laid in each. One or more cups are fashioned of pollen and wax and filled with honey before the young arrive. There are three distinct castes among social bees: The fertile female (queen), the infertile female (worker), and the drone (male).

After the first brood arrives, commonly all workers, the queen confines herself to egg laying while her daughters forage and enlarge the nest, constructing brood cells, building and storing honey and pollen pots, caring for the young. Brood cells are not used again, but cocoons are used for storage of honey and pollen after undergoing alterations. In some colonies the second brood is all male and the third brood is female. Workers of the later broods become progressively larger. The queens and males usually leave the nest and fly off to mate. Males are often seen flying about the entrance at this time, waiting for the young queens to come out.

Bumblebee colonies are never large; probably they average less than 200 individuals and seldom contain more than a few hundred.

Unlike honey bees they do not target specific plants but with the current decline in the honey bee population their presence has assumed greater importance. They are especially valuable locally as pollinators of the cranberry crop.

Light Brown Apple Moth — in June 2007 the Canadian Food Inspection Agency identified a new pest, the light brown apple moth, from Australia via California. The 250 host plants  identified include produce, cut flowers and greenhouse & nursery stock, with a potentially devastating impact on both importing and exporting business. Samples of host plants are cherries, apples, pears, many vegetables such as broccoli & cauliflower, forage plants, and ornamental & nursery plants. It is not harmful to humans or animals. For more information see the CFIA website.

Aphids — Looking ahead to warmer months... all you ever wanted to know about Aphids

European Chafer Beetle — what's that skunk doing to my grass? Where did those brown patches come from? Check out the City of Burnaby's website for information.

Invasive Alien Species the BC Ministry of Agriculture, Food and Fisheries is spearheading an initiative to increase public awareness of the threats posed by Invasive Alien Species. Check out the following information:

Non-native & invasive pests
Invasive pest alerts
No rest from new pests
Aliens on the web
Invasive Plant Council of BC


 

Previous Tips

The seasons
Winter to do list
The age of vegetables
Spring is here!....
February gardening tips
Fall jobs
Container winter glamour
Ready for fall
Weeds of the month
The April Garden

Sudden Oak Death (SOD)

SOD may still be a problem in gardens this year. The organism that causes SOD -- Phytopthora ramorum -- can also infect rhodos, viburnums, huckleberries, arbutus, big leaf maple, bay laurel, pink honeysuckle, Douglas-fir & other woody hosts. For more information see the following articles on the Canadian Food Inspection Agency web site: Sudden Oak Death at a BC Nursery and Sudden Oak Death - Phytophthora ramorum.

West Nile Virus as a gardener you can take steps to reduce mosquito populations around your home and property. Mosquitoes need standing pools of water to breed, so remove standing water from such items as pool covers, saucers under flower pots, pet bowls, and wading pools. Empty and clean bird baths twice a week. Also, clean eaves troughs regularly to prevent clogs that can trap water. For more information on West Nile virus see the Public Health Agency of Canada website.

Hosta virus— Many hostas are turning up that are infected with a virus called Hosta Virus X (HVX). The most commonly seen ones are plants of 'Gold Standard', 'Striptease', and 'Sum and Substance', but other common varieties are being reported infected in large numbers. While this disease does not kill plants, its primary danger lies in its proven ability to spread. For more information see Hosta Library and In the Country.

Weather Records  a summary of weather records for south coastal BC for the last three years prepared by Master Gardener Derry Walsh.

Learn more about Plant a Row - Grow a Row.

City of Vancouver Pesticide Use Restriction By-law for 2006 See what the by-law does and how it will affect you.

Drought Tolerant Plant List for City Boulevards
List compiled by volunteer Master Gardeners from Van Dusen Botanical Garden for the Prince Edward Street Waterwise Blooming Boulevard Project.

Least Toxic Pesticides -- Safers' fatty acid herbicide has now arrived on the shelves. It is sold in a ready-to-use container under the label, Top Gun. It is a non-residual, non-systematic herbicide which acts on contact to kill foliage.
Mel Felker,
Pesticide Review Committee

Dying cedar hedges - What is the Cause? Check out this BC government link for information.

 
 
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