These 3 types of underground vegetative reproductive structures are called what?
- rhizomes
-budding roots
-tubers/ bulbs
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propagules
What is the number of pests that should be controlled to prevent economic damage
from occurring?
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, Economic threshhold
_____ of the solution is the weight per unit of volume and expressed commonly as
pounds per gallon
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density
amount of time the nozzle is held open during pulse applications
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duty cycle
Atrazine, princep, exceed, lumax/lexer are all herbicides prone to carryover that are
used in what crop?
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Corn
Damages corn by coating the tassels and silks with honeydew which reduces
pollination.
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Leaf Aphid
What are the economic thresholds when scouting for corn rootworm beetles in soy?
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From late July to late august at least 5 beetles per unbaited pherocon AM
trap in soybeans or .75 beetles per plant in non-rotated corn.
They chew on the roots and root hairs of seedlings resulting in irregular emergence,
reduced stands, and stunted or wilted plants. Injured plants may turn purple because
they cannot take up phosphorus.
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Japanese beetle grubs
What is added to a postemergence herbicide to increase the following factors?
-spray coverage
-herbicide effectiveness
-spray potential
-droplet size which decreases drift
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- rhizomes
-budding roots
-tubers/ bulbs
Give this one a try later!
propagules
What is the number of pests that should be controlled to prevent economic damage
from occurring?
Give this one a try later!
, Economic threshhold
_____ of the solution is the weight per unit of volume and expressed commonly as
pounds per gallon
Give this one a try later!
density
amount of time the nozzle is held open during pulse applications
Give this one a try later!
duty cycle
Atrazine, princep, exceed, lumax/lexer are all herbicides prone to carryover that are
used in what crop?
Give this one a try later!
Corn
Damages corn by coating the tassels and silks with honeydew which reduces
pollination.
, Give this one a try later!
Leaf Aphid
What are the economic thresholds when scouting for corn rootworm beetles in soy?
Give this one a try later!
From late July to late august at least 5 beetles per unbaited pherocon AM
trap in soybeans or .75 beetles per plant in non-rotated corn.
They chew on the roots and root hairs of seedlings resulting in irregular emergence,
reduced stands, and stunted or wilted plants. Injured plants may turn purple because
they cannot take up phosphorus.
Give this one a try later!
Japanese beetle grubs
What is added to a postemergence herbicide to increase the following factors?
-spray coverage
-herbicide effectiveness
-spray potential
-droplet size which decreases drift
Give this one a try later!
