Introduction

647
Chlorpyrifos (OP)
Ungrazed and unoccupied areas such as
roadsides, right of way, and fence lines adjacent
to barley, wheat, oats, or canola, and lentils.
A or G 205- 418
ALWAYS CONSULT THE INSECTICIDE LABEL BEFORE APPLYING ANY INSECTICIDE.
1
Insecticide Group: P=pyrethroids, C=carbamates, OP=organophosphates.
2
LD 50
values represent the relative toxicity of a pesticide. They represent the dose (in mg/kg body weight) that will kill 50% of the
test animals. Thus the lower the number the greater the toxicity. Values given are for oral LD 50
.
Field Scouting in Peas (Field Peas)
• Cutworms
º Nominal Threshold: 2 to 3 cutworms per square metre.
Sap Feeders
• Aphids
º When and How to Monitor: Look for when monitoring field peas at the beginning of flowering. Take 180° sweeps
or check 10 8-inch (20 cm) plant tips at each stop. Record total number of aphids and calculate average per sweep
or plant tip.
º Economic Threshold: If, at the beginning of flowering, there are 9 to 12 aphids per sweep or 2-3 aphids per 8-inch
(20 cm) plant tip, an insecticide application when 50 percent of plants have produced some young pods will be
cost-effective.
Peas (Field Peas) Insect Management Chart
Insect
Wireworms
Insecticide
(and insecticide group 1 )
Cruiser Maxx Vibrance
Pulses (N)
Cruiser 5FS (N)
Rate/Acre
Preharvest
interval (days)
Belowground and Surface Feeders
Application
(A=aerial;
G=ground)
A seed treatment containing Cruiser 5FS and Vibrance Maxx RFC.
17-50 ml/
100 kg seed
LD 50
(Mammalian
Toxicity) 2
May be applied on-farm or by commercial seed treaters.
Stress Shield 600 (N) 104ml/100kg of seed Seed Treatment
Cutworms Coragen (D) 101 ml 1 A or G >5,000
Matador/Silencer (P) 34 ml 14 (Matador)
21 (Silencer)
A or G 64-110
Pounce/Perm-UP (P)
Ambush (P)
73-158 ml
57-121 ml
Sap and Fluid Feeders
Treat prior to
6 leaf stage
G 1030
Leafhoppers Malathion 85E (OP) 0.445 L 3 A or G 5,500
Pea Aphid Movento 75-111 ml 7 G >2,000
Matador/Silencer (P) 34-94 ml 14 (Matador)
A or G 64-110
21 (Silencer)
Voliam Xpress (D+P) 202 ml 14 A or G 98
Lannate (C) 0.206 kg 1 G 30-34
Malathion 85E (OP) 0.445 L 3 A or G 5,500
Lagon/Cygon 480 EC (OP) 0.11-0.15 L 3-21 (see labels) A or G 60-450
Defoliator
Grasshoppers Coragen (D) 51-101 ml 1 A or G >5,000
Matador/Silencer (P) 34 ml 14 (Matador)
21 (Silencer)
A or G 64-110
Insect Control