Illinois Seed Treatment Exam
1. seed treatment pesticides include
ANS 1. herbicide antidotes (safeners) 2. bacteri- cides 3. inscecticides 4.
fungicides
2. not a seed treatment
ANS 1. seed applied growth regulators 2. micronutrients 3. nitrogen-
fixing organisms
3. advantages of using seed treatment
ANS 1. control of seedborne pathogens 2. protect vulnerable seeds and
seedlings during stressful conditions of germination and emergence 3.
targeted, low dosage 4. relatively inexpensive control option 5.
relatively inexpensive control option 6. reduced environment impact 7.
may be only real control option 8. may be an alternative for spraying
some early foliar pests
4. disadvantages of seed treatment
ANS 1. accidental poisoning of children, animals, and wildlife 2.
potential for contamination of food and feed supply 3. exposure during
1/
, application and planting 4. seed or seedling phtyotoxicity 5. limited
duration of protection (also a benefit) 6. what to do with leftover treated
seed
5. factors that favor the use of seed treatments
ANS 1. field is for seed production
2. low test weight or older seed 3. planting in unfavorable germination
conditions such as wet and/or cold soil(these conditions may allow
weak pathogens to infect)
4. planting into fields with a history of stand establishment problems 5.
planting to precise populations 6. replanting will not be feasible if first
planting fails 7. seed is expensive 8. seed thought to carry certain
seedborne pathogens 9. yield potential of field is high
6. seed treatment as part of ipm
ANS 1. help minimize negative effects on the environ- ment 2. avoid
pesticide residue in the food supply 3. minimize economic loss due to
pests
4. avoid development of pests that overcame pesticides and host plan
resistance
7. purpose of seed treatments
2/
1. seed treatment pesticides include
ANS 1. herbicide antidotes (safeners) 2. bacteri- cides 3. inscecticides 4.
fungicides
2. not a seed treatment
ANS 1. seed applied growth regulators 2. micronutrients 3. nitrogen-
fixing organisms
3. advantages of using seed treatment
ANS 1. control of seedborne pathogens 2. protect vulnerable seeds and
seedlings during stressful conditions of germination and emergence 3.
targeted, low dosage 4. relatively inexpensive control option 5.
relatively inexpensive control option 6. reduced environment impact 7.
may be only real control option 8. may be an alternative for spraying
some early foliar pests
4. disadvantages of seed treatment
ANS 1. accidental poisoning of children, animals, and wildlife 2.
potential for contamination of food and feed supply 3. exposure during
1/
, application and planting 4. seed or seedling phtyotoxicity 5. limited
duration of protection (also a benefit) 6. what to do with leftover treated
seed
5. factors that favor the use of seed treatments
ANS 1. field is for seed production
2. low test weight or older seed 3. planting in unfavorable germination
conditions such as wet and/or cold soil(these conditions may allow
weak pathogens to infect)
4. planting into fields with a history of stand establishment problems 5.
planting to precise populations 6. replanting will not be feasible if first
planting fails 7. seed is expensive 8. seed thought to carry certain
seedborne pathogens 9. yield potential of field is high
6. seed treatment as part of ipm
ANS 1. help minimize negative effects on the environ- ment 2. avoid
pesticide residue in the food supply 3. minimize economic loss due to
pests
4. avoid development of pests that overcame pesticides and host plan
resistance
7. purpose of seed treatments
2/
