Fumigation of Ag Products

1
Fumigationof Ag Products

• Commercial Pesticide
• Re-certification
• February 6, 1997

Modified by Georgia Agricultural Education
Curriculum Office July, 2002
2
Fumigation of Ag Products

• Plant beds
• Plant growing containers
• Certain crop fields and production systems
• Buildings

3
Fumigation

• Products available for plant beds
• Methyl bromide - 9 to 18 Lb./100 sq. yd
• Basamid - 7.5 Lb./100 sq. yd
• Vapam - 1.5 gal/100 sq. yd

4
Fumigation

• Plant Beds - methyl bromide
• Site preparation
• work up to a depth of 6 inches
• Soil moisture
• enough moisture to germinate seed
• if not wet enough, irrigate

5
Fumigation

• Plant Bed cont.
• Soil temperature
• 60 to 80 degrees Farenheit
• Proper application
• New plastic
• Proper exposure

6
Fumigation

• Basamid
• prepare soil similar to methyl bromide
• soil temperature should be above 43oF
• after incorporation roll soil to pack it and wet
  the top with 3/16 - 3/8 inch of water to form a
  crust or cover with plastic
• do not work deeper than you treated

7
Fumigation

• Vapam
• temperature above 55 degrees
• moist soil
• inject to a depth of 5 inches or drench or spray
  in 40 gallons of water
• cover with plastic
• remove plastic 21 days before planting

8
Fumigation

• Plant containers -
• Pots
• Styrofoam trays
• stack no more than 5 feet high
• criss-cross trays
• place 1 LB. of Methyl Bromide per 300 cubic ft. (
  500 trays)
• use only 1 can per evaporating pan

9
Fumigation

• Styrofoam trays cont.
• wrap in plastic and seal
• expose 24 - 48 hours
• allow to air out 48 hours after exposure
• Controls diseases which liquid dips cannot get to
  such as sore shin (Rhizoctonia)

10
Fumigation

• Cropping systems
• Vegetable crops
• Tobacco to control certain diseases and nematodes

11
Fumigation

• Vegetable crops
• methyl bromide to help control diseases such as
  late blight
• methyl bromide as well as a few other fumigants
  can be used