lepids and shit Flashcards
What family are Sod Webworms in?
Pyralidae
describe the wings ofan adult sod webworm moth…
Wings are rolled. They wrap around the body.
What are some Spot ID characteristics of the Sod Webworm larvae?
They are hairy and have spots
define Hibernacula
A Silk-Lined chamber in the soil that they (sod webworms) live in when they aren’t feeding.
what are two spot ID characteristics for Sod Webworm adults?
- Labial Palps (snouts for mouthparts)
- Rolled Wings
where do sod wedworms feed?
they chew on leaves above the crown
Do sod webworms kill the plants themselves?
They chew leaves and the crown dies due to direct sunlight exposure bacuase it’s not protected by the leaves.
what is the difference between Cutworms and Sod Webworms when they adults are dispersing their eggs?
Cutworms stick the eggs to the grass blades
Sod Webworms drop them randomly, they dont stick them to anything.
What family are Cutworms and Armyworms in?
Noctuidae
compare the spot ID characteristics of Cutworms larvae and Sod Webworm larvae…
Sod Webworm larvae are spottedand have Setae (hairs)
Cutworm larvae have colorful stripes
and do not have hair, they are smooth. like my ass.
when cutworm larvae are disturbed…what do they do?
they curl up
Peak daily activity for cutworm larvae is when?
Just before sunrise
Where do cutworms live when they’re not feeding?
Larvae dig/burrow in ground and thatch
or occupy coring holes during day
If cutworm populations are really high when eggs hatch, they will cannibalize eachother.
True or False?
True
What do early instars of cutworm larvae do to grass plants?
Early instars “skeletonize” grass blades and leave pelletized frass
what do “older” cutworm larvae feed on?
They chew/cut grass above the crown
cutworms larvae migrate up to ____ feet at night.
70
what is a good field scouting technique for sod webworms, armyworms and cutworms?
adults?
larvae?
Disclosing solution with ratings grid for larvae
or
Blacklight traps for adults
Chemical Control for cutworms, sod webworms and armyworms…..
Young Larvae:
Older Larvae:
- Young Larvae: BT or Azidiractin
- Older Larvae: Conserve
Pretty much anything….
Acelypryn works well, lasts longer but is expensive
when in the day want to spray for cutworms, armyworms or sod webworms?
late in the day is the best
What are some biocontrol options for controling cutworms, armyworms and sod webworms?
- Entomopathogenic Nematodes and Fungi
- ENDOPHYTE ENHANCED SEED
What Order and Family are Chinchbugs & Greenbugs in?
Hempiptera
Lygaeidae
Chinch Bug Adult spot ID characteristics:
- White wings folded over body looks like an “X” on their back
- Orange Legs
What metamorphosis does the Chinch Bug go through?
Paurametabolous
How many nymphal instars do chinch bugs go through?
5
describe the nymph and adult chinchbug feeding injury
Nymphs and adults suck sap from leaves, stems, and crowns = Stipple
Where is chinch bug damage most severe?
Damage is most severe in heat sink areas
What kind of mouthparts do Chinch Bugs have?
Piercing/Sucking
What turf conditions favor Chinch Bugs?
Areas with excess thatch
What is the best way to monitor for chinch bugs?
Flotation (floating a plug in water) becuase they are so small.
Hard to see if using disclosing solution
describe the Chinch Bug Growing Degree Day (GDD) Model:
- • 50F base temp
- • Start date February 1
- • 198 - 252 DD: − 1st adult activity
- • 522 - 702 DD: – new nymphs emerge
Chemical Control for Chinch Bugs:
Acelypryn
Arena
When using plant phenology to monitor for chinch bugs….what plants do you look for?
White Clover and Sumac
What family are Green Bugs in?
Aphidae
for Green Bugs….Spray ______.
Talstar
Mole Crickets…. Family: _______?
Gryllotalpidae
How many instars for Mole Crickets…
7 instars
Chemical Control for Mole Crickets:
Fipronil
Mole Crickets have what kind of metamorphosis?
Paurometabolous
Mole Crickets lay up to ____ eggs at a time.
40
Mole Crickets prefer feeding on ______ but will sometimes eat ____ and ____in extreme cases.
Roots
Shoots and Crowns
When monitoring for Mole Crickets and using a disclosing solution….what is the action threshhold?
3 - 4 per square yard
what type of chemicals do you want to use for controling mole crickets?
Mix contact and residual products
Cranefly….Family: _______?
Tipulidae
What time of year is best for targeting Craneflys?
in the Fall
