ACTUAL QUESTIONS AND CORRECTLY
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Soft-bodied, pear-shaped insects, which often possess a pair
of horn-like structures known as cornices at eh posterior
end of the abdomen.
Aphids
What type of mouthparts do aphids belong to?
Piercing
What type of mouthparts do whiteflies belong to?
Piercing
Damaged leaves on shrubs and trees and have a splotched,
yellow appearance. Small, tar-like spots of excrement on the
undersides of leaves are usually present when these pests
infest plants.
Lace Bugs
Most common bacterial blight and canker disease of shrubs
and trees?
Fireblight
,Scalding and scorching of the leaves which develop when
soil moisture levels are good for tree growth?
Leaf Scorch
Symptom of the bacterial vascular wilt diseases, the
Southern Bacterial Wilt
Plants suddenly wilt and die
What type of control involves using microorganisms or
products of microorganisms to control diseases?
Biological Control
The following situations may cause the need for chemical
control:
* adapted resistant varieties are not available
* a lack of or inadequate crop management practices
* crop rotation is not possible or feasible
* a crop has high value
* a sudden unexpected disease outbreak
Two most commonly fungicides used for disease control on
ornamentals fall into two groups:
Contact and systemic fungicides
How do thrips feed?
Thrips feed by slashing plant tissue with knife-like mouthparts
and sucking up plant juice that seeps out.
Symptoms of Thrips
, Petals of flowers become blotched or speckled with
discolored areas from feeding. Buds are distorted and do not
open properly. Damaged leaves may have a stipples
appearance.
Hollow, rounded stems with joints (nodes) that are closed
and hard. The leaf blades are much longer than they are
wide, have parallel veins, and alternate up each side of the
stem
Crabgrass and goosegrass (example of grassy weeds)
Brightly colored flowers and net-like veins. The network of
small veins are connected to one or primary veins.
Geranium and spurges (examples of broadleafs)
Solids triangular stems that have leaves extending from
each side of the stem in three directions
Nutsedges (Examples of sedges)
Example of mechanical controlling weeds
Removal of weeds by hoeing, mowing, pulling, or mechanical
cultivation. (For occasional weeds)
Mulching is an example of?
Mechanical Contral
Using weed free seed or plant material is an example of
____________________ control?
Cultural Control