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What element should you use if you would like to lower the pH in your soil?. Answer: Sulfur. Max 2-4 lbs per 1,000 sq. ft. per ap Max 10 lbs per 1,000 sq. ft. in a year Approx 12 lbs per 1,000 sq. ft. to lower 0.5 points (9 lbs in sandy soils)
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What element should you use if you would like to lower the pH in your soil?
Answer: Sulfur • Max 2-4 lbs per 1,000 sq. ft. per ap • Max 10 lbs per 1,000 sq. ft. in a year • Approx 12 lbs per 1,000 sq. ft. to lower 0.5 points (9 lbs in sandy soils) • Apply right after aeration in cool weather and higher cut turf • Always defer to the lab
Which element should you use if you would like to raise the pH in your soil?
Answer: Lime • Max 50 lbs per 1,000 sq. ft. per ap • Max 100 lbs per 1,000 sq. ft. per year • Approx 50 lbs per 1,000 sq. ft. to lower 0.5 points (25 lbs in sandy soils) • Apply right after aeration in cool weather and higher cut turf • Always defer to the lab
For our area, what range of pH is considered acceptable? • 4.5-6.0 • 6.0-7.5 • 7.5-9.0
Answer: B) 6.0-7.5
Put these grasses in order of shade tolerance: • Kentucky Bluegrass • Perennial Ryegrass • Tall Fescue • Fine Fescues
Answer: • 1) Fine Fescues • 2) Tall Fescues • 3) Perennial Ryegrass • 4) Kentucky Bluegrass
Answer: • Red Fescue (Strong & Slender) • Chewings Fescue • Sheep Fescue • Hard Fescue
Advantages of Fine Fescues • Excellent Drought Tolerance • Low Fertility Requirements • Excellent Shade Tolerance • Low Growing –4”-6”
Disadvantages of Fine Fescues • Poor wear tolerance • Certain types may go dormant in summer when heat is highest (chewings & creeping red fescue)
Answer: Tall Fescue • Moderately wear tolerant • Good shade tolerance • Excellent drought tolerance • Improved disease tolerance • Resistance to certain insects if endophyte-enhanced
Answer: Tall FescueDisadvantages • Questionable cold tolerance • Not as fine-bladed as other turf grasses • More frequent mowing • A bunch-type grass • Does not mix so well with other grasses—seed by itself or with 10-20% kentucky bluegrass
I am a perennial, bunch-type grass that exhibits good green color. My latin name is lolium perenne. What am I?
Answer: Perennial Ryegrass • Establishes quickly • Good color • Blends well with bluegrass and fine fescues • Bunch-type growth • Should be endophyte-enhanced
When is the best time to aerate a lawn? • A) Late March • B) End of May/early June • C) Late September/early October
Ohio St. did a study on wear tolerance. Which of these combinations performed the best? • A) Kentucky Bluegrass/Perennial Ryegrass Mix • B) 100% Kentucky Bluegrass (Improved) • C) 100% Tall Fescue (rhizomatous) Kentucky D) Bluegrass/Tall Fescue Mix
Answer: • B) 100% Kentucky Bluegrass (Improved) • A) Kentucky Bluegrass/Perennial Ryegrass Mix • D) Kentucky Bluegrass/Tall Fescue Mix • C) 100% Tall Fescue (rhizomatous) --A & D were roughly a tie
True or False: • Coatings on grass seed have been shown to consistently increase seed germination and should be integrated into your overseeding program?
Answer: False • “I’d like to charge you more money for a gimmick”. • Fertilizer Coating = Not Enough • Water absorbing polymer = Little Effect • Exceptions: Apron or Maxim Coatings
As a general rule of thumb, after grass seed germinates, how long should you wait before it is safe to apply an herbicide? • When the grass is at least one inch tall. • Once the grass has been mowed 2 times • 6 months from the time you seeded
Answer: • B) Once the grass has been mowed 2 times • Always defer to the label and manufacturer’s recommendations
What is the proper planting depth for turf seed? • A) Sitting on top of the Soil • B) 1/16” – 1/8” • C) ¼” – ½” • D) ¾”
Answer: • B) 1/16” – 1/8” inch Too shallow = nowhere for roots to go Too deep = Tired Seed
True or False: There is no such thing as putting down too much seed?
Answer: False • Too much seed = carpet effect
Answer: Watering!! • Too much = dormancy/washing out • Too little = wilting & death
Poa Supina is: • A) A last resort species of grass for shady areas • B) An annual weed • C) A term I made up • D) Another name for Poa Trivialis
Answer: • A) A last resort species of grass for shady areas • Slow to germinate, but very aggressive when established • Extremely wear tolerant • Quick spring green-up • Lighter green color • Very expensive—5-10% is enough in mix
According to a New York trial, which element, when applied annually at 2-4 lbs per 1,000 sq. ft., increased water-use efficiency by 19-45%?
Answer: Potassium • Makes turf tougher—increasing wear tolerance • Has been shown to diminish disease before when applied before an outbreak
I spread via rhizomes and am well equipped to handle our harsh winters. I mix well with others (grasses) but I am slow to germinate and can be expensive (but I’m worth it). Which grass am I?
Answer: Kentucky Bluegrass • Very wear tolerant and excellent recuperative ability • Slow to germinate (14-28 days) • New varieties = dark green color • Likes to be fertilized—higher maintenance • Relatively good drought tolerance • Mixes well with other grasses • New varieties exhibit good resistance
I am a parasite that helps protect some types of grasses from certain insects. What am I called?
Answer: An Endophyte • Perennial Ryegrass/Tall Fescue and a limited # of fine fesuces • Makes plant tougher naturally • Defends against sod webworm, billbug, fall armyworms, stem weevils, and chinch bugs • Non-toxic to dogs or other pets
A few last helpful tips: • Irrigate in the early morning • Mow in the morning • Keep mowing heights high (2.5” or so) • Irrigate before and after applying insecticide • Try using Iron in place of an application • Only use slow release fertilizers in all areas, but particularly in shady areas.