Rhizosphaera needle cast.(PEST OF THE MONTH)
Arbor Age, December, 2006 by Childs, Gina
Rhizosphaera needle cast, caused by the fungus Rhizosphaera Kalkhoffii, is a disfiguring disease of blue and white spruce in landscape settings, as well as in nurseries and Christmas tree plantations.
What does it look like?
The fungus can be identified by observing the stomata of spruce needles. Instead of the needles displaying normal white stomata, infected needles will have fuzzy black dots. Late in the summer, infected 2-year-old or older needles turn yellow, then brown, and eventually are cast from the tree. The damage is most severe on the lower portion of the tree. Infected trees can resemble trees infected by Cytospora canker; however, a tree infected by Cytospora will typically have branch cankers, as well as large amounts of pitching at the...
- 5 Rules for Immediate Annuities
- Death in the Family: 12 Things to Do Now
- Dumbest Things You Do With Your Money
- 6 Online Networking Mistakes to Avoid
- 401(k) Mistakes to Avoid
- 5 Economic Scenarios to Keep You Up at Night
- The Real ‘Best Places to Retire’
- Best Credit Cards for You
- 12 Tough Questions to Ask Your Parents
- The Real ‘Best Colleges’
- Home Buyer Tax Credit: How to Cash In
- Why You Shouldn't Bash Cash
- 8 Phony 'Bargains' and Better Alternatives
- Danger: 3 Debit Card Scams to Avoid
- 6 Myths About Gas Mileage
- 29 Fees We Hate Most
- Quick and Easy Ways to Boost Returns
- Best Stocks to Buy Now
- Lower Your Taxes: 10 Moves to Make Now
- New Jobs: 8 Lessons from Real-Life Career Switchers
- The New Job Market: Who Wins and Who Loses?
- Health Care Reform's Public Option: Everything You Need to Know
- Volunteer Work When Unemployed: Should You Work for Free?
- Whose Recovery Is This?
- Long-Term-Care Insurance: 4 Biggest Risks to Avoid
Most Recent Business Articles
- "Do not rely on a single economy" ; Larsen and Toubro (L and T) was affected due to the slowdown particularly the products businesses, which include switchgears, construction equipment and industrial bars.
- "The first deliberate call we took was not to lay off anybody" ; The diversified group decided to reskill all surplus workers.
- "Government had to step up its demand" ; The downturn affected the government as much as India Inc. The outgoing advisor to the Government of India details its impact and its lessons.
- "Help your customers even in difficult times" ; Oil was at an all-time high at over $135 per barrel just before the financial meltdown. Then oil crashed to a low of $35 per barrel in January this year, bringing down any fresh demand for pipes fr
- "You have to be visible as a leader" ; Transparency is a standard operating procedure for communications during a downturn.
Most Recent Business Publications
Most Popular Business Articles
- 7 tips for effective listening: productive listening does not occur naturally. It requires hard work and practice - Back To Basics - effective listening is a crucial skill for internal auditors
- Using object-oriented analysis and design over traditional structured analysis and design
- FAS 109: a primer for non-accountants - Financial Accounting Standards Board's "Statement 109: Accounting for Income Taxes"
- Design a commission plan that drives sales - Sales Commissions
- The best time to buy a car: December is not the only time to get a new set of wheels. We'll show you when to make your move to the dealer's showroom
