Beneficial Insects (and relatives) Index
Earwig (Family Labiduridae)
Diptera - Gall
Gnat Larvae (Family Cecidomyiidae); Long-Legged
Fly (Family Dolichopodidae); Mydas Fly (Family
Mydidae); Robber Fly (Asilidae );Syrphid Fly(Hover, Flower) Larvae (Family Syrphidae)
Hemiptera - Ambush
Bug (Family Phymatidae); Assassin Bugs (Family
Reduviidae); Big-eyed bug (Family Lygaeidae,
sub-family Geocorinae); Damsel Bugs (Family
Nabidae); Minute Pirate Bug (Family
Anthocoridae); Spined Soldier Bug (Family Pentatomidae, Podisus spp.); Two Spotted Stink Bug (Family Pentatomidae)
Neuroptera - Antlion
(Family Myrmeleontidae); Lacewing Larvae
(Families Chrysopidae, Hemerobiidae); Mantidfly
Non-Insects - Predatory Mites ; Spiders (Black Widow, Brown Recluse, Hobo, Orb Weaver,
Crab, Funnel-web Weaver, Jumping, Lynx, Mesh-web Weaver, Sheet-web Weaver, Wolf)
Odonata - Dragonflies (Families Petaluridae, Gomphidae, Aeshnidae,
Cordulegastridae, Macromiidae, Corduliidae, Libellulidae); Damselflies
(Families Calopterygidae, Lestidae, Coenagrionidae)
Orthoptera - Praying
Mantis (Family Mantidae)
Thysanoptera - Banded
Thrips (Family Aeolothipidae, e.g. Six-spotted Thrips (Scolothrips sexmaculatus),
Banded-wing thrip (Aeolothrips fasciatus)
Diptera - Bee Fly
(Family Bombyliidae);Tachinid Fly Larvae (Family
Bacillus popilliae (also known as milky spore disease) is effective
against larva of Japanese beetles. Some brands claim control of oriental beetles, Rose
chafers and some May and June beetles. Some commercial products are Doom, Japidemic and
Grub Attack. It takes one or more years to completely control beetles.
Bacillus thuringiensis (Bt) is a bacteria which attacks caterpillars and
various other insects depending on the variety. Dipel, Thuricide, Bactur, Mosquito Attack
are some commercial names associated with Bt; be sure and read the label for pest
effectiveness. It disrupts the insect's digestive system so they starve. It is a very safe
var. berliner/kurstake is effective against leaf-eating insect larvae such as
loopers, hornworms, corn earworms, gypsy moth caterpillars, oakworms, meal & flour
moth worms, diamondback moth caterpillars, fruitworms, leaf folders and most species of
leaf-eating moth larvae and butterflies.
var. San Diego tenebrionis is effective against Colorado potato beetles and
elm leaf beetle.
var. israeliensis is effective against mosquito larvae and black fly larvae.
It can be applied to water breeding sources for mosquitos.
Nosema locustae is a single-cell protozoan which can infect and control
grasshoppers of the Malanoplus family, locusts and mole, mormon and black field crickets.
Takes up to a year to develop good control. Nolo and Grasshopper Attack are two of several
commercial products available.
Caterpillars, aphids, mole crickets and whiteflies are some of the insects attacked by
Aschersonia (red and brown) attacks whiteflies and can completely destroy a population.
Steinernema and Neoaplectana carpocapsae prey on termites and the larvae and
grubs of various beetles, weevils, armyworms, cutworms, chafers, webworms, borers,
maggots, fleas and fungas gnats. This nematode enter their prey through body openings and
kill their host within 2 days. The nematodes continue to produce and seek new prey. Check
the label on Scanmask, Biosafe, Bio-Logis and Grub-Eater commercial products for specific
pests that they are effective against.
Heterohabditis bacteriophora is similar to S. carpocapsae but it can
enter it's prey through it's body walls as well as through body openings.
Coleoptera - Klamathweed Beetle
Last edited: 11/06/99 11:28 PM