by Jeffrey R. Aldrich consulting, LLC

Partial Prey List for the (: : maculiventris)

Adult feeding on Mexican Bean Nymph feeding on

Who is the “Spined Soldier Bug?” This little known, but common critter is one of the so-called “true bugs” (order Heteroptera: Pentatomidae). Unlike many of its more familiar plant-feeding relatives, such as plant bugs and most other stink bugs, the spined soldier bug (Podisus maculiventris) is an obligate predator on a multitude of other , especially leaf-feeding caterpillars and . Both adults and immature “nymphs” feed on unsuspecting prey by their cat-like ability to seek out and latch onto them with their barbed piercing-sucking mouthparts before their quarry realizes they are being attacked. At this point, escape is usually futile as soldier bugs often flip their struggling victims in mid-air suspended from their muscle-bound beak, all the while injecting saliva to kill and predigest the prey. Spined soldier bugs have a huge natural range spanning most of , and a powerful male-produced aggregation pheromone was identified years ago for this beneficial (Aldrich et al. 1978, 1984). Now, in the waning years of my entomological career, I am on a mission from my home base in Marcell, Minnesota to promote the use of this native predator for truly home-grown, safe biological control for organic gardeners and growers. ( & caterpillars)

Common name Scientific name looper Trichoplusia ni Imported cabbageworm rapae looper Chrysodeixis includens Armyworms Spodoptera spp. Green cloverworm Hypena scabra California oakworm Phryganidia californica Fruittree leafroller Archips argyrospila Pink-striped oakworm Anisota virginiensis Parsleyworm Papilio polyxenes Black citrus swallowtail Papilio polytes

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Tobacco budworm Heliothis virescens Bollworm / Corn earworm / Tomato fruitworm Old World cotton bollworm Helicoverpa armigera Velvetbean caterpillar gemmatalis Spring cankerworm Paleacrata vernata Fall webworm Alsophila pometaria Plutella xylostella Codling moth Cydia pomonella Cutworms Agrotis, Euxoa, etc. Tussock Orgyia spp. Tent caterpillars Malacosoma spp.

COLEOPTERA (beetle grubs)

Mexican bean beetle Epilachna varivestis Colorado potato beetle Leptinotarsa decemlineata Grape Altica chalybea Sumac flea beetles Blepharida rhois Asparagus beetle Crioceris asparagi Yellow margined Microtheca ochrolom Cottonwood leaf beetle Chrysomela scripta Mint leaf beetle bankii Spotted cucumber beetle, etc. Diabrotica spp. Elm leaf beetle Xanthogaleruca luteola Pyrrhalta viburni weevil Hypera postica

REFERENCES

Anonymous. 2009. California Oakworm. Pest Notes - University of California Publication 7422. Desurmont, G., and P. A. Weston. 2008. Predation by Podisus maculiventris (Say)(: Pentatomidae) on viburnum leaf beetle, Pyrrhalta viburni (Paykull)(Coleoptera: Chrysomelidae), under laboratory and field conditions. Environmental Entomology 37: 1241-1251. McPherson, J. E. 1980. A list of the prey species of Podisus maculiventris (Hemiptera: Pentatomidae). Great Lakes Entomologist 13: 17-24. Mukerji, M. K., and E. J. LeRoux. 1965. Laboratory rearing of a Quebec strain of the pentatomid predator, Podisus maculiventris (Say) (Hemiptera: Pentatomidae). Phytoprotection 46: 40-60.

Reddy, G. V. P., and R. Kikuchi. 2011. Laboratory host range assessment of a predatory pentatomid, Podisus maculiventris (Hemiptera: Pentatomidae) for field release on Guam. Florida Entomologist 94: 853-858.

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