| Background Information for this page |
| Return to radar list for Middletown RI |
| Weather data for Middletown RI. Forecast values begin September 1, 2010 |
| Key Dates are highlighted in yellow boxes |
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| Borers - Roundheaded Appletree Borer RAB & Dogwood Borer |
| RAB
adult emergence begins: May 20. Peak emergence: June 3. RAB egglaying begins: May 29. Peak egglaying period roughly: June 20 to July 3. |
| First RAB eggs hatch roughly: June 13. Peak hatch roughly: July 5 to July 23. |
| First Dogwood borer egg hatch roughly: June 23. Peak hatch roughly: July 25. |
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| Codling Moth CM |
| Codling
moth development as of September 1:
2nd generation egg hatch is completed. Key codling moth managment dates shown below |
| 1st
generation 3% CM egg hatch: May
30, Sunday (= target date for first spray where multiple sprays needed to control 1st generation CM) See Codling moth tables for follow-up spray dates to maintain protection through 1st generation CM egg hatch. |
| 1st
generation 20% CM egg hatch: June
6, Sunday (= target date where one spray needed to control 1st generation codling moth) |
| 2nd
generation 7% CM egg hatch: July
19, Monday (= target date for first spray where multiple sprays needed to control 2nd generation CM) If needed and allowed by preharvest interval, see the August Codling Moth table for follow-up spray dates. |
| 2nd
generation 30% CM egg hatch: July
27, Tuesday (= target date where one spray needed to control 2nd generation codling moth) |
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| Lesser Appleworm LAW |
| 1st LAW flight begins around: April 27, Tuesday. Peak trap catch: May 6. |
| 2nd LAW flight begins around: June 30, Wednesday |
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| Mullein Plant Bug MPB |
| The
expected 50% egg hatch date is: May
6, Thursday, which is 2 days before rough estimate of Red Delicious petal fall date. |
| Most
accurate time for limb tapping counts, but possibly after MPB damage has
occurred, is 90% egg hatch date: May 15, Saturday |
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| Obliquebanded Leafroller OBLR |
| 1st generation OBLR flight begins around: May 30, Sunday |
| Where
waiting to sample late instar OBLR larvae is not an option (= where OBLR is known to be a problem, and will be managed with insecticide against young larvae): |
| Early
egg hatch and optimum date for initial application of B.t., Delegate,
SpinTor, Proclaim, Intrepid, Rimon, Altacor, Belt, pyrethroid or other
insecticide effective against OBLR (with follow-up applications as needed): June 17, Thursday |
| Where
waiting to sample late instar OBLR larvae to determine need for
treatment is an option, or to check on results from earlier sprays: |
| Optimum
sample date for late instar summer generation OBLR larvae: June 25, Friday If first OBLR late instar larvae sample is below threshold, date for confirmation follow-up: June 29, Tuesday |
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| Oriental Fruit Moth OFM |
1st generation OFM flight starts: April 15, Thursday 1st generation - 55% egg hatch and first treatment date, if needed: May 21, Friday |
| 2nd
generation OFM flight begins around:
June 22, Tuesday 2nd generation - first treatment date, if needed: June 29, Tuesday 2nd generation - second treatment date, if needed: July 9, Friday |
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| Plum Curculio PC |
| Increased risk of PC damage as McIntosh and
similar cultivars increase fruit size: May 6, Thursday |
| Earliest safe date for last PC insecticide spray: May 20, Thursday |
| Plum curculio spray intervals |
| If relying on repellance by Surround instead of PC mortality by insecticide, Surround coverage should be maintained until PC egglaying begins to naturally decline around Monday, June 14. |
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| Redbanded Leafroller RBLR |
| 1st
RBLR flight begins around April 5,
Monday. Peak trap catch and approximate start of egg hatch: April 19, Monday. |
| 2nd
RBLR flight begins around June 24,
Thursday. Peak catch and approximate start of egg hatch: July 1 |
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| San Jose Scale SJS |
| First
adult SJS caught on trap: May 3, Monday 1st generation SJS crawlers appear: June 9, Wednesday |
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| Spotted
Tentiform Leafminer STLM (and presumably Apple Blotch Leafminer) |
| 1st STLM flight, peak trap catch: January 1, Sunday |
| 1st
generation sapfeeding mines start showing:
May 8, Saturday. Optimum sample date is around Sunday, May 9, when a larger portion of the mines are visible. |
| ____________________ |
| 2nd STLM flight begins around: June 6, Sunday |
| Rough guess of when 2nd generation sap-feeding mines begin showing: June 26, Saturday. |
| Optimum
first sample date for 2nd generation STLM sapfeeding mines is July 3, Saturday |
| Second
optimized sample date for 2nd generation STLM sapfeeding mines, if needed:
July 9, Friday |
| Third
optimized sample date for 2nd generation STLM sapfeeding mines, if needed:
July 18, Sunday |
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| Tarnished Plant Bug TPB |
| Rough guess of when TPB begin showing on traps: April 6, Tuesday |
| Rough
guess of when TPB damage results in deformed fruit at harvest instead of aborted bud: April 8, Thursday |
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| White Apple Leafhopper WAL |
| 1st generation WAL found on apple foliage: May 1, Saturday |
| 2nd generation WAL found on apple foliage: July 25, Sunday |
* Rose leafhopper is easily confused with WAL but has different generation dates. Rose leafhoppers typically immigrate into orchards from border row host plants between 1st and 2nd generation WAL. |