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
