Grey cluster bug
Nysius caledoniae (Nysius clevelandensis)
Adults are 3-4 mm long, mottled grey-brown-black, and have clear wings folded flat over the back. Nymphs are wingless, with a reddish-brown, pear-shaped body. N. clevelandesis and N. vinitor can be distinguished from each other with a hand lens or microscope. N. vinitor looks smooth, while N. clevelandensis is hairy.
The Rutherglen bug is common in New South Wales, Queensland, South Australia, Victoria and southern Western Australia.
Damage: sunflower: infestation during grain set and grain fill will reduce yield, oil content and oil quality. In seed crops, RGB will reduce germination of seed. Heavy infestations during budding may cause heads to wild and distort. RGB impact is greater in moisture-stressed crops.
Pesticides
Alpha-Scud Elite
intensity: ★★★
Arrivo 250 EC
intensity: ★★★
Arrivo 40 ULV
intensity: ★★★
Cheminova Trojan
intensity: ★★★
Cyrux 200 EC
intensity: ★★★
Cyrux 250 EC
intensity: ★★★
Dominex Duo
intensity: ★★★
Fastac Duo
intensity: ★★★
Fury 14 ULV
intensity: ★★★
Karate Zeon
intensity: ★★★
Unichoice 100 EC
intensity: ★★★
Alpha Duo 100
intensity: N/A
Alpha Forte 250 SC
intensity: N/A
Alphasip Duo100
intensity: N/A
Arysta LifeScience Lambda-Cyhalothrin 250 CS
intensity: N/A
Lambda 250 CS
intensity: N/A
Lepidex 500
intensity: N/A
Mascot Duo
intensity: N/A
Matador With Zeob
intensity: N/A
Suprathion 400 EC
intensity: N/A