Controlled atmosphere treatment for control of grape mealybug, us maritimus (Ehrhorn) (Hemiptera idae), on harvested table grapes.pdf.pdf

Postharvest Biology and Technology 86 (2013) 113–117

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Postharvest Biology and Technology

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Controlled atmosphere treatment for control of grape mealybug,


us maritimus (Ehrhorn) (Hemiptera: idae), on

harvested table grapes
∗
Yong-Biao Liu
1

USDA-ARS , 1636 E. Alisal Street, Salinas, CA 93905, USA

a r t i c l e i n f o a b s t r a c t


Article history: Controlled atmosphere (CA) treatments with ultralow oxygen (ULO) alone and binations with 50%

Received 16 February 2012



carbon dioxide were studied to control grape mealybug, us maritimus (Ehrhorn) on harvested

Accepted 14 June 2013 −1

table grapes. Two ultralow oxygen levels, 30 and < ␮L L , were tested in both ULO and ULO + 50% CO2




treatments. The ULO treatments with the lower oxygen level were more effective than the ULO treatments
Keywords:

at the higher oxygen level. The ULO + 50% CO2 treatments were more effective than the ULO treatments.
Controlled atmosphere




Grape mealybug eggs were significantly more tolerant of ULO and ULO + CO2 treatments than nymphs and
Ultralow oxygen −1 ◦

adults. A 14 day ULO treatment with 30 ␮L L O at 2 C did not achieve 100% mortalities of any life stage.
Phytosanitary 2



In the presence of 50% CO2,