Introduction

630
Scouting for insects in Canaryseed
Sap Feeders
• Aphids
º When and How to Monitor: Start checking for aphids when monitoring during the early heading stage of
canaryseed. The head should be bent and closely inspected for aphids hiding along the small stem inside the
canaryseed head. Also check the stems, underside of leaves, and in the canaryseed boot.
º Nominal Threshold: 10 to 20 aphids on 50% of the stems prior to the soft dough stage.
Canaryseed Insect Management Chart
Insect
Aphids
Insecticide
(and insecticide group 1 )
Rate/Acre
Sap Feeders
Preharvest
interval (days)
Application
(A=aerial;
G=ground)
LD 50
(Mammalian
Toxicity) 2
Lagon/Cygon 480 EC/
0.20 L 21 A or G 60-450
Cygon 480-AG (OP)
Malathion 85E (OP) 0.277 L 14 A or G 5,500
ALWAYS CONSULT THE INSECTICIDE LABEL BEFORE APPLYING ANY INSECTICIDE.
1
Insecticide Group: 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
.