insect predators & parasitoids in cucurbits€¦ · parasitoids in cucurbits elizabeth...
TRANSCRIPT
Insect Predators & Parasitoids in Cucurbits
Insect Predators & Parasitoids in Cucurbits
Elizabeth “Betsy” A. Boyd, PhDUC-Berkeley
Kearney Agricultural Center
Elizabeth “Betsy” A. Boyd, PhDUC-Berkeley
Kearney Agricultural Center
Background image courtesy of: aggie-horticulture.tamu.edu/extension/Texascrops/cucurbitsmeloncrops/wholewatermelon.jpg
RoadmapRoadmap
Background Information: Types of Insect Natural Enemies
Beneficial Predators and Parasitoids of Common Cucurbit Insect Pests
Where to get Natural Enemies
Background Information: Types of Insect Natural Enemies
Beneficial Predators and Parasitoids of Common Cucurbit Insect Pests
Where to get Natural Enemies
Three Classes of Insect Natural Enemies
Three Classes of Insect Natural Enemies
ParasitesParasitoidsPredators
ParasitesParasitoidsPredators
ParasitesParasites
Feed upon, but do not kill hostInternal or external developmentSpecific to a group of hosts
Feed upon, but do not kill hostInternal or external developmentSpecific to a group of hosts
ParasitoidsParasitoids
Gradually consume & kill hostDevelop internally or externallySpecific to one host or group of hosts
Gradually consume & kill hostDevelop internally or externallySpecific to one host or group of hosts
PredatorsPredators
Immediately kill & consume preyNot specific to a certain host
– Generalists: eat bad & sometimes good– Active Searching, Sit-and-Wait, Ambush
Immediately kill & consume preyNot specific to a certain host
– Generalists: eat bad & sometimes good– Active Searching, Sit-and-Wait, Ambush
Generalist Insect PredatorsGeneralist Insect Predators
Ladybird Beetles
Lacewings
Syrphid Flies
Ladybird Beetles
Lacewings
Syrphid Flies
True bugs
Flies
True bugs
Flies
Wasps
Predatory mites & thrips
Wasps
Predatory mites & thrips
Spiders
Praying Mantids
Lizards
Spiders
Praying Mantids
Lizards
Biological Control of Common Pests in Cucurbits
Biological Control of Common Pests in Cucurbits
Melon AphidsMelon Aphids
Melon Aphid ParasitoidsMelon Aphid ParasitoidsLysiphlebus sppLysiphlebus spp Aphidius sppAphidius spp
Diaeretiella sppDiaeretiella spp Aphelinus sppAphelinus spp
Melon Aphid Parasitoid Life Cycle
Melon Aphid Parasitoid Life Cycle
Melon Aphid Predators:Ladybird Beetles
Melon Aphid Predators:Ladybird Beetles
Melon Aphid Predators:Syrphid Flies (aka Hoverflies)
Melon Aphid Predators:Syrphid Flies (aka Hoverflies)
Melon Aphid Predators:Green Lacewings
Melon Aphid Predators:Green Lacewings
Melon Aphid Predators:Brown Lacewings
Melon Aphid Predators:Brown Lacewings
WhitefliesWhiteflies
Whitefly LifecycleWhitefly Lifecycle
Whitefly parasitoidsWhitefly parasitoids
Encarsia formosa
Eretmocerus sp
Encarsia formosa
Eretmocerus sp
Whitefly PredatorsWhitefly Predators
Big-eyed bugs, Geocoris sp
Minute Pirate Bugs
Big-eyed bugs, Geocoris sp
Minute Pirate Bugs
Whitefly PredatorsWhitefly Predators
Lacewings
Ladybird beetles
Lacewings
Ladybird beetles
Whitefly PredatorsWhitefly Predators
Delphastus pusillusDelphastus pusillus
Squash BugsSquash Bugs
Squash Bug ParasitoidsSquash Bug Parasitoids
Trichopoda pennipes
*Eumicrosoma beneficia (Scelionid)
Trichopoda pennipes
*Eumicrosoma beneficia (Scelionid)
LeafminersLeafminers
Leafminer ParasitoidsLeafminer Parasitoids
Diglyphus spp.
Cucumber BeetlesCucumber Beetles
Cucumber Beetle Predators & Parasitoids
Cucumber Beetle Predators & Parasitoids
Soldier Beetles
Tachinid fly, Celatoria diabroticae
– Not effective controls in California
Soldier Beetles
Tachinid fly, Celatoria diabroticae
– Not effective controls in California
Armyworms, Cutworms, Loopers
Armyworms, Cutworms, Loopers
Caterpillar ParasitoidsCaterpillar Parasitoids
Hyposoter exiguaeHyposoter exiguae
Caterpillar ParasitoidsCaterpillar Parasitoids
Microplitis brassicaeTrichogramma
pretiosum
Microplitis brassicaeTrichogramma
pretiosum
Caterpillar ParasitoidsCaterpillar Parasitoids
Tachinid fliesTachinid flies
Caterpillar PredatorsCaterpillar Predators
Lacewings
Ladybird beetles
Lacewings
Ladybird beetles
Caterpillar PredatorsCaterpillar Predators
True bugs Robber flies
Minute Pirate Bugs Wasps
True bugs Robber flies
Minute Pirate Bugs Wasps
Spider MitesSpider Mites
Spider Mite PredatorsSpider Mite Predators
Western predatory mite, Galendromus occidentalis
Phytoseiulus persimilisNeoseiulus californicusNeoseiulus cucumeris
Western predatory mite, Galendromus occidentalis
Phytoseiulus persimilisNeoseiulus californicusNeoseiulus cucumeris
Spider Mite PredatorsSpider Mite Predators
Six-spotted thrips, Scolothrips
sexmaculatus
Six-spotted thrips, Scolothrips
sexmaculatus
Spider Mite PredatorsSpider Mite Predators
Spider Mite Destroyer, Stethorus spp.Spider Mite Destroyer, Stethorus spp.
Now you know the Natural Enemies you want…
Now you know the Natural Enemies you want…
But where can you get them?But where can you get them?
Where to Purchase Natural Enemies?
Where to Purchase Natural Enemies?
University of Florida website:www.hos.ufl.edu/ProtectedAg/
NorthAmericanBeneficialSuppliers.htm
Local home and garden stores
University of Florida website:www.hos.ufl.edu/ProtectedAg/
NorthAmericanBeneficialSuppliers.htm
Local home and garden stores
Best Place to get Natural Enemies
Best Place to get Natural Enemies
A friend or neighbor’s garden! (with permission, of course)
A friend or neighbor’s garden! (with permission, of course)
Squash Bug ParasitoidsSquash Bug Parasitoids
see Metcalf&Metcalf 1993 Destructive and Useful Insect…
Coleomegilla maculata (Coccinellidae) perhaps not found in CA
see Metcalf&Metcalf 1993 Destructive and Useful Insect…
Coleomegilla maculata (Coccinellidae) perhaps not found in CA