Final - Section 4 Flashcards
What is a pheromone trap?
A trap that uses insect pheromones to attract a specific species.
what is qualitative date?
Yes or No
what is quantitative data?
How much or How many
how should you use your ratings grid with your disclosing solution?
Set the grid on the turf, pour the disclosing soultion out over the entire grid, record both qualitative and quantitative date for each square.
name two ways you can avoid compatibility problems when mixing pesticides.
- perform a Jar Test before tank mixing
- Test your water pH before mixing to make sure it’s between 5.5 and 6.2
how does mowing influence turf resistance?
- Mowing weakens turf
- Leaves torn leaf blades
- Creates compaction
- Some fungi spread with the mower
List 3 ways pesticides are named:
- Common Name
- Group Name
- Trade Name
define economic threshold:
Pest population is high enough to reduce plant quality
greater than it costs to control it
define tolerance threshold:
Damage level clientele can tolerate – subjective threshold
based on predetermined quality level
compare fungicide and fungistat
- Fungicides kill the pathogen
- Fungistate prevent growth and development
what is biochemical mode of action?
It is based on the toxin’s relationship with the fungus
Define efficacy:
the ability to produce the desired or intended result
List the 3 types of penetrant fungicides:
- Localized
- Systemic
- Acropetal
list 2 way to increase the resistance of turfgrass to pest attack.
- Choose resistant varieties
- Use a blend of turfgrass varieties
- Endophyte enhanced soils
- heat treat seeds
define degree days:
heat units that are tracked to predict insects and weeds
how can you avoid alkaline hydrolosis when mixing pesticides?
- Test the pH of your water
- Use a Buffering agent
name two routes of entry into the insect for insecticide
- absorbed through the cuticle
- ingested
what are chlorinesterase inhibitors ?
They turn electrical impulses of nerve cells on and off
What type of fungicide can be effective in granular formulation?
Heritage
Name a synthetic fungicide that can be considered a biocontrol
Heritage
What is a multi-site toxin?
a toxin that affects multiple metabolic sites
What is antibiosis?
biological interaction between two or more organisms that is detrimental to at least one of them
What are the best nozzle types for disease control?
Flat fan nozzles get the best coverage
