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To be effective, when should you apply protectant fungicides? a. whenever insects become active because they spread fungal spores b. anytime, protectant fungicides will "protect" the plant even if the disease is already established. c. before the disease occurs d. only after you can clearly see fungus growing on the plant - answer>>>c
Which of the following organisms cause leafspot disease? a. plant ringworm b. bacteria and fungi c. certain kinds of insects d. all of the above under certain conditions - answer>>>b
Which of the following pests compete with plants for light, moisture, and nutrients? a. insects b. nematodes c. weeds d. all of the above - answer>>>c
Some weevills are important plant pests. Which insect category includes weevils? a. foliage feeders b. sucking insects c. beetles
d. borers and tunnelers - answer>>>c
Why are some weeds referred to as biennials? a. they always occur in association with another organism b. they are identified by distinctive two-leaved structures c. they have two ways of reproducing d. their life cycles lasts for two years - answer>>>d
Why are some weeds referred to as perennials? a. the name comes from the Latin word for seed (peres) b. they reproduce by seed each year and die c. vegetative parts permit survival from one year to the next d. they are commonly associated with pest insects or disease - answer>>>c
Which of the following pests reproduce with rhizomes? a. insects b. viruses c. perennial weeds d. biennial weeds - answer>>>c
How can you avoid back-siphoning when you are filling a tank with hose? a. leave an air gap between the hose and the liquid in the tank b.keep the end of the hose near bottom of the spray tank during the fill process c. fill the tank completely. Adjust the amount of pesticide added to maintain proper mix. d. allow the hose to completely drain into the tank before you remove the hose - answer>>>a
Moths and butterflies are often serious plant pests. Which life stage of the moth/butterfly causes damage? a. the adult b. the larva c. the pupa d. all life stages can cause plant damage if population is high - answer>>>b
Which of the following is a selective herbicide? a. paraquat (gramoxone) b. glyphosate (RoundUp) c. atrazine (aatrex) d. bromacil (hyvar) - answer>>>c
When should a drop spreader be used to apply pesticide? a. to apply pesticides subject to drift because larger droplets are produced b. to apply liquid pesticide to the drop, root, zone c. to apply dust pesticides d. to apply granular pesticides - answer>>>d
Which of the following modes of action describes how the dinitroaniline herbicides(balan, prowl, treflan) kill plants? a. disruption of respiration b. disruption of cell division c. disruption of photosynthesis d. disruption of hormone regulation - answer>>>b
When are nematode problems more likely to be observed?
a. soil moisture is low and fertility is high b. soil moisture is high and fertility is high c. when soil moisture is low and fertility is low d. when soil moisture is high and fertility is low - answer>>>c
which of following indicates infection by a fungal wilt disease? a. extensive root rot on living b. brown stem discoloration that is apparent when the stem is cut lengthwise c. Knots or fungal nodules on the feeder roots d. fungal spores on the leaves surrounded by a halo - answer>>>c
where do foliage diseases occur? a. leaves, flowers, fruit, and stems b. leaves, flowers, and fruit c. leaves and flowers d. leaves only - answer>>>a
Which of the following insects does not have the four life stages of complete metamorphosis, egg, larva, pupa, and adult? a. beetles b. sucking insects c. borers and tunnelers d. weevils - answer>>>b
Sooty mold can be a serious plant disease because the mold reduces the penetration of sunlight into the leaves. Which of the following insects often leads to the growth of sooty mold?
d. perennials - answer>>>a
Which weed category includes common cocklebur, sicklepod, coffee senna, and morningglory? a. broadleaf perennials b. large seeded biennials c. annual large-seeded broadleaves d. annual large-seeded perennials - answer>>>c
Which of the following weeds is a small-seeded broadleaf annual? a. bristly starbur b. wild carrot c. horse nettle d. pigweed - answer>>>d
Sanitation can be an important nonchemical way to manage pest populations. Which of the following is an example of sanitation? a. changing crops from year to year b. careful cleaning of equipment before moving between fields c. growing crops that can withstand a particular disease d. cultivating between rows as weed populations increase - answer>>>b
If you double the ground speed of the sprayer, how does the new speed affect the amount of pesticide being applied? a. the amount of pesticide applied is not changed b. the amount of pesticide is decreased by 50% or (1/2) c. the amount of pesticide is also doubled
d. the amount of pesticide applied is reduced by the square of the new speed - answer>>>b
Which nozzle is the most popular for fungicide applications? a. hollow cone b. flat fan c. flood d. even fan - answer>>>a
Which of the following variables does not affect the amount of spray mixture that is applied per acre? a. ground speed of the sprayer b. effective sprayed width c. nozzle flow rate d. pesticide formulation - answer>>>d
What is the best way to find out if a pesticide can be injected into an irrigation system? a. refer to the pesticide label b. refer the irrigation equipment manual c. refer to the internet d. refer to the dealer representative - answer>>>a
Which of the following insects is an important foliar pest of cotton, soybean, peanut, tomato, tobacco, and other crops? a. white grubs b. corn earworm c. wireworm
What term refers to the amount of pesticide that is allowed to legally remain on a commodity? a.residue b. drift c. tolerance d. acceptable average level - answer>>>c
How can you reduce the risk of pytotoxicity? a. apply pesticides during bright, hot weather to ensure quick drying b. mix pesticides together to reduce the total number of applications c. use highly concentrated applications to avoid excessive water on the plants d. avoid application of pesticides to plants under environmental stress - answer>>>d
Injury from triazine herbicides if similar to injury from substituted ureas because they have the same mode of action. What is their mode action? a. inhibition of photosynthesis b. inhibition of leaf expansion c. inhibition of lipid synthesis d. inhibition of amino acid synthesis - answer>>>a
Which of the following is a pyrethroid insecticide? a. dimethoate (cygon) b. cyfluthrin (baythroid) c. azinphos-methyl (guthion) d. bacillus thuringienis (dipel) - answer>>>b
If you wish to double the flow rate, how much would you have to increase the spray pressure? a. increase pressure 50% b. double the pressure c. increase the pressure four times d. decrease the pressure by 50% - answer>>>c
If you double the effective spray width, how is the spray application rate affected? a. the rate is doubled b. the rate is increased four times c. the rate is decreased by 1/ d. the rate is unchanged - answer>>>c
Suppose a wettable powder is 50% active ingredient (50WP). How much of the formulated pesticide product should you use if you need to apply 2 pounds of active ingredient per acre? a. 2 lbs b. 4lbs c. 8lbs d. 1 lbs - answer>>>b
Which of the following is a microbial pesticide? a. methomyl (lannate) b. bacillus thuringiensis (dipel) c. benomyl (benlate) d. permethrin (pounce) - answer>>>b
T/F With some exceptions, seedling weeds are more tolerant of herbicides because the smaller weeds are able to grow back more quickly. - answer>>>f
Soil-applied, translocated preemergence herbicides are highly effective for controlling what kind of weeds? a. perennials b. biennials c. annuals d. grasses - answer>>>c
When sampling for nematodes, how many soil samples should you take per acre? a. 4 b. 6 c. 8 d. 10 - answer>>>d
Suppose you observe these two symptoms: dark canker that may girdle the stem at the soil line and soft, watery rot at the soil line. What disease is the most likely cause of these symptoms? a. damping off b. crown rot c. stem canker d. root rot - answer>>>a
T/F Plant diseases are mutually exclusive. In other words, a plant will only have one disease at a time. - answer>>>f
What group of insects includes borers and tunnelers?
a. beetles b. sucking insects c. caterpillars d. soil inhabiting larvae - answer>>>c
a. Fungus growth on leaves b. Wilting C. Rotten Roots d. All of the Above - answer>>>A. Fungus on leaves
Symptom- the reaction of the host plant to invasion by the parasite. I.E. Wilting Sign- physical evidence of a pathogen, such as visible growth of fungus spores
Protecting groundwater from contamination is important because Georgia citizens depend on groundwater as the source for drinking water.What percentage of Georgia citizens get their drinking water from groundwater sources? a. 15%-25% b.35%-45% c.55%-65% d. 65%-75% - answer>>>d. 65%-75%
Verticillium wilt can be an important plant disease. In what region of Georgia is this disease most likely to occur? a. North Georgia b. East Georgia c. West Georgia d. South Georgia - answer>>>a. North Georgia
b. copper oxide c. captan Bordeaux Mixture - answer>>>c.
Fusarium wilt is often caused by an interaction between what two organisms? a. nematodes and fungi b. nematodes and bacteria c. nematodes and virus d. all of the above - answer>>>a
Which of the following is a principle cause of the decline of plant and animal species? a. pesticides b.legal hunting activities c. pollution d. loss of habitat - answer>>>d
T/F Soil fumigants are the only pesticide option to control nematodes. - answer>>>f
Which of the following federal agencies regulates pesticides to protect endangered species? a. U.S. EPA b. USDA c. U.S. Fish and Wildlife Service d. U.S. Forest Service - answer>>>a
T/F A warm season annual is a plant that emerges from seed in the fall and dies before summer. - answer>>>f
What types of annual broadleaf weeds are the most difficult to control with preemergence herbicides? a. small seeded broadleaf because the herbicide is less likely to contact the seed. b. large seeded broadleaf because the seeds may emerge below the herbicide zone c. broadleaves with burr seeds (cockleburr) because the burrs provide protection from herbicides d. broadleaves with any size seeds that emerge very near the soil surface. - answer>>>b
T/F Soil-applied preemergence herbicides are generally more effective if they are applied after the weed seeds germinate. - answer>>>f
T/F A selective herbicide is one that is selected by the Georgia Coorperative Extension Service because it will control a wide range of broadleaf weeds and grasses. - answer>>>f
T/F Some contact herbicides may provide residual control as well as contact kill. - answer>>>t
Why are some weeds named annuals? a. because you will see them nearly every year b. because they have vegetative plant parts which permit survival from year to year c. because they have a one year life cycle d. because the latin word "nuual" refers to plants that produce large numbers of seeds - answer>>>c
You can prevent significant economic losses due o weeds if you keep the crop free of weeds for this period. a. ten weeks after crop emergence b. four to seven weeks after crop emergence
c. identifying the pest properly d. immediately planting a trap crop adjacent to the field - answer>>>c
Pesticide storage, mixing, and rinsing activities should be at least this far from a well. a. 25 ft b. 50 ft c. 75 ft d. 100 ft - answer>>>d
Which of the following will help prevent pesticide movement into the well when you are applying pesticide through an irrigation system? a. flag fan nozzles instead of hollow cone nozzles b. check valve or pressure switch c. high pressure instead of low pressure d. feeder lines connected directly to low pressure tank between high pressure linkage - answer>>>b
The indigo snake is glossy black, 5-7 feet long, and similar to a black rat snake. The color of the chin and sides of the head will help identify the indigo snake. What color are the chin and sides of the head of the indigo snake? a. bluish or greenish b. black, reddish, or brownish c. greenish with a red stripe d. yellowish with a series of redspots - answer>>>b
Wood storks will travel up to 80 miles from nesting sites to feed. Where do wood storks typically feed? a. in deep water ponds and lakes
b. open fields c. shallow ponds and ditches d. wooded areas - answer>>>c
Which of the following is a soil inhabiting insect larva? a) soil aphid b) wireworm c)European corn borer d) fall armyworm - answer>>>b
Systemic insecticides are often a good option for controlling sucking insects. Which of the following pests are sucking insects? a. white grubs and wireworms b. Mexican bean beetles and white-fringed beetles c. Many types of caterpillars d. aphids and stinkbugs - answer>>>d
Pest resistance to pesticides is an important problem. How can you help to avoid pest resistance? a. Plant the same crops in the same field as often as possible b. stick wih one kind of pesticide throughout the entire season unless it is no longer effective c. create a refuge to maintain a susceptible population of pests d. use a broad spectrum pesticide whenever possible - answer>>>c or d???
Anthracnose, scab, leaf blotch, and shot hole are examples of which kind of plant disease? a. Leaf spots
