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11 Cards in this Set
- Front
- Back
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what does the phloem do & where is it located? who feeds on it?
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just under bark, it distributes sugars in photosynthesis to leaves, seeds, etc.
-bark beetles & engravers feed on it, also photosynthate sappers |
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what kind of ants sting? what kind of ants don't sting & why?
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primitive ants sting- like the red imported fire ant (RIFA)
more advanced forms lost sting, replaced w/ formic acid squirting system, like the carpenter ants |
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what is a new termite in the US? how is it diff. from the regular termites here?
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formosan termite: does not need contact w/ soil, aggressive colonizer and spreads fast
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inorganic pesticides- what type of poison? examples? characteristics?
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stomach poisons: arsenic, boric acid, lead arsenate, sulfur-fungicide; 1st insecticidal compounds
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organochlorines- what type of poison? examples? characteristics?
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nerve poisons: aldrin, dieldrin, toxaphene (soil insecticides), DDT; cheap, fat soluble, bioaccumulates, persistent
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organophosphates- what type of poison? examples? characteristics?
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-nerve poisons: malathlon, dichlorvos; byproduct of WWIII nerve gas research in germany, used to replace persistent organochlorines: non-persistent, systemic
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carbamates- what type of poison? examples? characteristics?
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nerve poisons: dursban, sevin; short to medium persistence, relatively nontoxic to mammals, low specificity/broad spectrum
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Botanicals/ natural insecticides: what are they? examples?
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some are neurotoxins, some are stomach poisons: pyrethrum, rotenone, nicotine, synthetic pyrethroids
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insect growth regulators: what do they do? examples?
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inhibit hormones involved w/ insect growth/development such as juvenile hormones or chitin synthesis... ex: Dimillin
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microbials: what are they? characteristics?
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diseases formulated as sprays (ex Bt, dipel, NPV), they are non-persistent, specific, and must be consumed by insect
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what type of insects are most commonly used in biological control programs? what's a char. of them?
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parasitoids (primarily wasps)-- they are often specialists, i.e. single species & stage specific
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