Illinois Seed Treatment Questions And
Answers With Solutions
seed treatment pesticides include - 1. herbicide antidotes (safeners) 2.
bactericides 3. inscecticides 4. fungicides
not a seed treatment - 1. seed applied growth regulators 2.
micronutrients 3. nitrogen-fixing organisms
advantages of using seed treatment - 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
disadvantages of seed treatment - 1. accidental poisoning of children,
animals, and wildlife 2. potential for contamination of food and feed
supply 3. exposure during application and planting 4. seed or seedling
phtyotoxicity 5. limited duration of protection (also a benefit) 6. what to
do with leftover treated seed
factors that favor the use of seed treatments - 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
seed treatment as part of ipm - 1. help minimize negative effects on the
environment 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 plant
resistance
purpose of seed treatments - A. control of seedborne pathogens
*seedborne pathogens may be found on the seed surface, in cracks and
crevices or as infections inside the intact seed * these pathogens may be
important for three reasons: 1. some seedborne pat hogens may not
survive in the soil or on plant residues. 2. seedborne pathogens may get
a head start and cause greater damage. 3. seedborne pathogens may
move from one location to another in seed shipments B. control of
soilborne and foliar pests *germinating seeds and young plants are
relatively tender and lack food reserves to recover from injuries
contact pesticides - control only surface pathogens
systemic pesticides - help control seedborne pathogens both on the
surface and internally
Answers With Solutions
seed treatment pesticides include - 1. herbicide antidotes (safeners) 2.
bactericides 3. inscecticides 4. fungicides
not a seed treatment - 1. seed applied growth regulators 2.
micronutrients 3. nitrogen-fixing organisms
advantages of using seed treatment - 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
disadvantages of seed treatment - 1. accidental poisoning of children,
animals, and wildlife 2. potential for contamination of food and feed
supply 3. exposure during application and planting 4. seed or seedling
phtyotoxicity 5. limited duration of protection (also a benefit) 6. what to
do with leftover treated seed
factors that favor the use of seed treatments - 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
seed treatment as part of ipm - 1. help minimize negative effects on the
environment 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 plant
resistance
purpose of seed treatments - A. control of seedborne pathogens
*seedborne pathogens may be found on the seed surface, in cracks and
crevices or as infections inside the intact seed * these pathogens may be
important for three reasons: 1. some seedborne pat hogens may not
survive in the soil or on plant residues. 2. seedborne pathogens may get
a head start and cause greater damage. 3. seedborne pathogens may
move from one location to another in seed shipments B. control of
soilborne and foliar pests *germinating seeds and young plants are
relatively tender and lack food reserves to recover from injuries
contact pesticides - control only surface pathogens
systemic pesticides - help control seedborne pathogens both on the
surface and internally
