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alder flea beetle
aphid management
apple and thorn skeletonizer
apple ermine moth
azalea bark scale
azalea lace bug Updated
bark lice
Barypeithes root weevil
Beneficial nematodes
biocontrol of root weevils
birch aphid
black stem borer
bluegum psyllid
borers
branch and twig borer
brown marmorated stink bug

bronze birch borer
boxwood leafminer
boxwood psyllid
bulb flies
carpet beetle New
Calligraph californica
caterpillars

Ceanothus stem gall moth
cereal leaf beetle
cherry ermine moth
chilli thrips
clay colored weevil
cottony camellia scale
cutworm Updated
craneflies
cypress tip moth

dogwood sawfly
Douglas fir sawfly
Douglas fir twig weevil
earwigs
elm leafminer
European pine shoot moth
European shot-hole borer
European wool carder bee
emerald ash borer
Fall webworm
flatheaded cedar borer
hollyhock weevil
honeylocust plant bug
honeylocust pod gall midge
Heliothis phloxiphaga
holly bud moth
huckleberry root aphids
ground mealybug
lacebugs
lady beetle gallery
leaf weevil
light brown apple moth
maple tip moth
maple midge
March flies
mountain ash sawfly
spruce aphid on spruce
oak ambrosia beetle
oak slug
obscure root weevil
Pacific flatheaded borer
peach tree borer
peach twig borer
pear psylla
pear leaf-curling midge
pear sawfly New
pine needle scale
poplar and willow borer
rose curculio weevil
rose midge
roseslug
sawflies
scale
sequoia pitch moth
speckled green fruitworm
spittlebug
tent caterpillars
thrips
viburnum leaf beetle
violet gall midge
western poplar clearwing
western spotted cucumber beetle
white pine weevil
whiteflies
woolly ash aphid

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Duponchelia fovealis

Duponchelia fovealis (no official common name) but sometimes called the Duponchelia moth or European pepper moth, has recently been detected in 13 states in the US. This moth, which originates in Southern Europe and North Africa, can be a pest of a number of ornamental crops, particularly of those grown in greenhouses. It also has the potential to infest a range of economic crops outdoors in warmer areas of the US such as California, SE, and coastal portions of the PNW.

This pest is most likely distributed through floral and nursery crop dissemination. This pest has most frequently been intercepted on pepper plants. It can be difficult to detect due to its propensity to remain hidden in the upper levels of soil, under pots, or lower webbed leaves while feeding as a larva. It can also bore into stems to feed. The larvae are adapted to wet, moist conditions commonly found in greenhouses and have also been considered pests of aquatic plants.

D. fovealis is most commonly detected using pheromone traps (Koppert) although light traps have also been used in areas in which they are established. They are good fliers and have been detected 100 kilometers from infested greenhouses in the Netherlands.

Management has been oriented toward use of Bt (Bacillus thuringiencis) for the caterpillars and chemical applications for the adult moth. A risk management document from Canada mentions that spinosad (Conserve) has been studied in greenhouse conditions in the Netherlands and did perform better than the untreated control but was less effective than the Bt and soil-dwelling biological control agents such as Atheta coriaria, Heterorhabditus bacteriophora, Hypoaspis aculeifer, and H. miles, and Steinernema feltiae. H. miles showed the most promise for control but effectiveness was based on the growth medium. Atheta beetles targeted the eggs and the first instar larvae but were ineffective against older larvae and effectiveness was also influenced by the growth medium.

The wet conditions where larvae are often found can reduce the effectiveness for some pesticides applied to that area. Pesticide efficacy has also been influenced by the type of crop treated, with efficacy higher on a crop such as Cyclamen where the sprays are directed toward the crown and with less efficacy on a crop like Kalanchoe where sprays are shielded from the soil next to the plant by the plant canopy. Life cycle varies by temperature but most greenhouse programs consider a full 10 week life cycle to determine effectiveness of treatments.

Further resources:

Bethke, J. and Vander Mey. 2010. Pest Alert: Duponchelia fovealis. UC. Cooperative Extension.

Brambila, J. and S. Passoa. 2010. Duponchelia fovealis - European Pepper Moth. Field Screening Aid. Cooperative Agriculture Pest Survey and USDA/PPQ.

CPHST. Duponchelia fovealis Zeller: Duponchelia. New Pest Advisory Group Report. Center for Plant Health Science & Technology (CPHST). Amended September 17, 2010.

Murphy, Graeme. Duponchelia fovealis - pronouncing it is just the start of the battle. Greenhouse Grower Notes. Ontario Ministry of Agriculture, Food and Rural Affairs.

 

Website editor:
Robin Rosetta

Page last modified 11/2/10

 

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