Lync Session 3 9/21/15

Transcription

1 Lync Session 3 9/21/15 Life cycles & development White grubs Sawflies Fruit flies Jessica and Linda Life cycles and development White grubs Annual Japanese beetle, masked chafers Green June beetle Multi year May beetles 1

2 White grub Brown, sclerotized head for jaws 3 prwell developed legs C shaped soft, white body ID raster patterns spines & hairs Protected habitats *Factoids Aboveground plants attractive to adults rotation important Japanese beetles in soybeans Soil moisture important for egg hatch Most feeding by annual grubs July August, little in spring Move deeper in fall protected from cold Beetles with white grub larval stages May beetles (lots of spp) Japanese beetle Masked chafers Green June beetle Dung beetles Eastern Hercules beetle Stag beetle Drugstore beetle 2

3 Raster patterns Green June beetle Legs small relative to body; 2 irregular rows of large and small bristles, abdomen covered with fine hairs; crawls on back (night) *Feeds on organic matter heavy thatch, manure *Dead GJB grubs on surface after insecticide application 3

4 Blue winged wasp Green June beetle parasitoid Masked chafers Larger legs; raster spines scattered randomly Root feeder Aug September Little feeding in spring May beetles Larger legs; rasters form 2 parallel rows Grubs feed on roots for 2 to 3 years often pastures and hayfields Delayed damage Many species in KY 4

5 Japanese beetle Larger legs; rasters form V 2 converging rows Root feeder Aug September Little feeding in spring Insecticides for grub control turf Preventive late May June Scotts GrubEx Season Long Grub Killer 0.08% Chlorantraniliprole grubs and caterpillars (28) $ 4.00/1,000 sq ft Bayer Season Long Grub Control Imidacloprid (3) $ 4.00 / 1,000 sq ft Insecticides for grub control turf Rescue mid August September Bayer 24 Hour Grub Killer Dylox grubs and caterpillars (1b) $ 5.60/1,000 sq ft Garden Tech Sevin Lawn Insect Granules white grubs (1a) 2% Carbaryl $ 9.00 / 1,000 sq ft 5

6 *Insecticides for grub control crops Broadcast (PPI) or banded application before or at planting Banding protects root zone Nematodes for grub control Attack and multiply in host May persist in soil Need moisture after irrigation or rain UV light sterilizes them Steinernema spp ambushers caterpillars Heterorhabditis spp. hunters grubs $50/1,000 sq ft Milky spore disease Japanese beetle grubs only Reliability questioned 6 applications over 2 years $5.00/1,000 for each application Long term once established 6

7 Sawflies Hymenoptera Eggs in plant tissue often at crown Sawfly larvae Prolegs on all abdominal segments no hooks Head with single eye on each side Redheaded pine sawfly Worse on stressed trees < 15 tall Late June and Aug September Feed for 3 weeks in colonies on new and old needles Winter in cocoon in soil 7

8 Introduced pine sawfly Eastern white and other pines Late June and Aug September and November 1 st generation feeds on old needles 2 nd feeds on old and new Pupates on host Dogwood sawfly Small larvae skeletonize Large larvae eat all but midrib Different appearance during development Oak Roses Slug sawflies 8

9 Grass sawfly Shiny black adults common in early spring Light yellow larvae on grasses and wheat Control Spinosad insecticides Bonide Capt Jack s Dead Bug Brew Tracer Conserve Pyrethroids Not Bt Common fruit fly / vinegar fly Drosophila Yellowish body and distinct red eyes Attracted to fermentation odors specifically CO 2 9

10 Breeding sites Over ripe fruits and vegetables Sink drains, garbage disposals Empty bottles and cans recycling Liquid in bottom of trash cans Mops and cleaning rags Anything with a film of fermenting material Biology Egg to adult 8 to 10 days Eggs/female 500 Surface infestations do not bore deep into material Management Find and discard infested material look for pupae Thorough cleaning Cleaning gel for traps and drains Insecticides generally not recommended Clean trash cans Use trash can liners No exposed food Refrigerator storage Traps 10

11 Fruit fly traps Terro T2500 $6.95 apple shaped fits in with any kitchen décor Shroom of Doom $32.00 Fruit Fly BarPro FFBP insecticide vapor strip $ (10 pak) (for non food areas) (dichlorvos Vapona) OSHA permitted exposure level is 1 mg/m 3 11