Start Scouting for Sugarcane Aphid

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Sugarcane aphid was found near Florence, SC today, one day before it was found in this location during 2015. Last year, this insect was found in NC during mid-July, so it could be here any day. Start scouting field edges, bottoms of plants, and bottoms of leaves. Treatment thresholds are below:

Growth Stage Threshold
Pre-boot 20% infested plants with localized area of honeydew and established aphid colonies
Boot 20% infested plants with localized area of honeydew and established aphid colonies
Flowering-milk 30% infested plants with localized area of honeydew and established aphid colonies
Soft dough 30% infested plants with localized area of honeydew and established aphid colonies
Dough 30% infested plants with localized area of honeydew and established aphid colonies
Black layer Heavy honeydew and established aphid colonies in head (treat to avoid problems at harvest)

Use at least 4 oz of Sivanto or 1.5 oz of Transform. A maximum of 3 oz of Transform can be used per year.

Written By

Photo of Dr. Dominic ReisigDr. Dominic ReisigAssociate Professor and Extension Specialist (252) 793-4428 dominic_reisig@ncsu.eduEntomology and Plant Pathology - NC State University
Posted on Jun 23, 2016
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