Mid-Late season management in vineyards

• • Stink bugs • Fruit flies • Spotted lanternfly

Photos: Andy Muza, Penn State

Flor E. Acevedo Pre-bloom - summer

Grape phylloxera, Daktulosphaera vitifoliae (: )

Insecticides (foliar form): Assail Danitol Movento

https://bugguide.net/node/view/794979

Photos (c) Prof. Dr. Joachim Schmid, Department of Grapevine Breeding and Grafting, Geisenheim Research Institute, Germany Root form Leaf form Mid-summer to pre-harvest

Brown marmorated stink bug, Halyomorpha halys (Hemiptera: )

• Native to Asia • Polyphagous (over 100 plant species) • Detected in Allentown, PA in 1998

Photo: Andy Muza, Penn State Mid-summer to pre-harvest

Photo by Steve Schoof

Brown marmorated Dusky stink bug Brown stink bug Onespotted stink bug Rough stink bug stink bug Consperse stink bug ( tristigmus) (Euschistus servus) (Euschistus variolarius) (Euschistus conspersus) (Brochymena (Halyomorpha halys) quadripustulata)

Photo: Brandon Woo Photo: Brent Short, USDA Photo: Brent Short, USDA Photo: Brent Short, USDA Photo: Brent Short, USDA Photo: Mike Quinn https://www.stopbmsb.org/stink-bug-basics/look-alike-insects/ Mid-summer to pre-harvest Brown marmorated stink bug Samurai wasp Natural enemies: (Trissolcus japonicus) Egg parasitoid

Photo by the Oregon Department of Agriculture Insecticides: Material Rate per Acre Comments

Source: 2020 New York and Pennsylvania Pest management guidelines for grapes Pre-harvest Fruit flies

Spotted wing Drosophila Fruit fly Drosophila suzukii Drosophila melanogaster

By Martin Hauser, source: https://amasianv.wordpress.com/tag/asian-shore-crab/ Pre-harvest Fruit fly ovipositors

Crava et al., 2019. BioRxiv Pre-harvest

• Close association of fruit flies with sour rot.

• Fruit flies contribute to spread of sour rot. • Fruit flies carry yeast and bacteria. • Applications of insecticides + antimicrobials before symptoms appear (after 15 brix) help reduce sour rot.

https://grapesandwine.cals.cornell.edu/sites/grapesandwine.cals.cornell. edu/files/shared/Research%20Focus%202017-3.pdf Pre-harvest

Drosophila melanogaster insecticide resistance (documented and potential):

• Mustang Maxx (zeta-cypermethrin, pyrethroid) • Danitol 2.4EC (fenpropathrin, pyrethroid) • Malathion 57% (organophosphate) • Malathion 5 EC (organophosphate) • Malathion 8 Aquamul (organophosphate) • Assail 30 SG (Acetamiprid, neonicotinoid) Pre-harvest Fruit fly pesticide management

Material Rate per Acre Comments

Source: 2020 New York and Pennsylvania Pest management guidelines for grapes Pre-harvest Fruit fly pesticide management

Material Rate per Acre Comments

Source: 2020 New York and Pennsylvania Pest management guidelines for grapes Pre-harvest to post-harvest

Spotted lanternfly, Lycorma delicatula (Hemiptera: Fulgoridae)

Image: Pennsylvania Department of Agriculture Pre-harvest to post-harvest

SLF pesticide management

Material Rate per Acre Comments

Source: 2020 New York and Pennsylvania Pest management guidelines for grapes