Damage caused by insects and arthropod pests Flashcards
what are the type of plant pests
defoliators plant suckers internal feeders stalk and stem borers cut off at ground level Forest subterranean feeders
what are defoliators
pests that eat the leaves of plants
what do we call insects that feed on plants?
herbivores
What is plant sucking?
suck the juices from plants
what are the symptoms of plant sucking
curled and stunted leaves and stems
wilt caused by blockage of conducting tissue
dead areas caused by injection of toxins during feeding
Plant sucking Aphids and other homopterans excrete honeydew- how does this damage a plant
this sticky material makes an excellent place for black sooty mold fungus to grow.
Plant suckers transfer plant pathogens this is called
vectoring
What arthopods are internal feeders
arthopods that begin as larvae
Internal feeders are inside the leaves, fruit, grain, and seed, when is the damage often detected
not until the damage is extensive
Stalk and stem borers causes what damage
destroys tissues, weakening the stalk and preventing adequate transport of food and water
give and example of a defoliator
caterpillar (larval form of butterflies and moths (Lepidoptera)
What order is the caterpillar in?
Lepidoptera
what order is the beetle in?
Coleoptera
What order are scales in?
Homoptera
What order are squash bugs in?
Hemiptera
What does cut off at the ground level pest mean?
sever plants at ground level
remain underground during the day and feed at night
What are Forest Pest?
pests that attack trees at the leaves stems wood bark or roots
Subterranean feeders feed on what part of the plant?
roots
What kind of damage can be seen due to subterranean feeders?
plants with poor color and reduced vigor, goose necking in corn, or dead spots in lawns
What is Maine’s most serious structural pests?
carpenter ant
