|
Scaffolds
03 index
|
Upcoming Pest Events |
Trap Catches | Insects
| Current
DD accumulations |
43°F
|
50°F
|
| (Geneva 1/1-9/8): |
3066
|
2065
|
|
(Geneva 1/1-9/8/2002):
|
3361
|
2364
|
|
(Geneva "Normal"):
|
3210
|
2260
|
|
(Geneva 9/15 Predicted):
|
3225
|
2175
|
| |
|
Upcoming Pest Events:
|
Ranges:
|
|
|
American plum borer 2nd flight subsides
|
2841-3698
|
1907-2640
|
|
Lesser appleworm 2nd flight peak
|
1801-3328
|
1188-2359
|
|
Lesser appleworm 2nd flight subsides
|
2775-3466
|
2002-2460
|
|
Lesser peachtree borer flight subsides
|
2782-3474
|
1796-2513
|
|
Obliquebanded leafroller 2nd flight subsides
|
2809-3656
|
1930-2573
|
|
Oriental fruit moth 3rd flight subsides
|
2987-3522
|
2018-2377
|
|
Redbanded leafroller 3rd flight peak
|
2514-3285
|
1818-2625
|
|
San Jose scale 2nd flight subsides
|
2494-3582
|
1662-2477
|
|
Sp. tentiform leafminer 3rd flight subsides
|
3235-3471
|
2228-2472
|
Return to top
Upcoming Pest
Events | Trap Catches | Insects
|
TRAP CATCHES (Number/trap/day)
|
|
Geneva
|
|
|
|
|
| |
8/21
|
8/25
|
9/2
|
9/8
|
|
Redbanded Leafroller
|
0.2
|
0.6
|
0.9
|
0.5
|
|
Spotted Tentiform Leafminer
|
42.5
|
47.8
|
22.8
|
13.7
|
|
Oriental Fruit Moth
|
1.3
|
2.1
|
1.8
|
1.3
|
|
Lesser Appleworm
|
0.3
|
0.5
|
0.3
|
0.4
|
|
San Jose Scale
|
21.8
|
11.8
|
11.1
|
2.0
|
|
Codling Moth
|
0.0
|
0.0
|
0.0
|
0.0
|
|
Obliquebanded Leafroller
|
0.3
|
0.0
|
0.3
|
0.1
|
|
American Plum Borer
|
0.3
|
0.3
|
0.0
|
0.0
|
|
Lesser Peachtree Borer
|
0.3
|
0.0
|
0.1
|
0.0
|
|
Peachtree Borer
|
0.0
|
0.1
|
0.0
|
0.0
|
|
Apple Maggot
|
0.0
|
0.0
|
0.0
|
0.0
|
|
Highland (Dick Straub, Peter Jentsch):
|
| |
7/28
|
8/4
|
8/11
|
8/25
|
|
Redbanded Leafroller
|
0.6
|
0.5
|
0.0
|
0.5
|
|
Spotted Tentiform Leafminer
|
46.2
|
44.4
|
41.9
|
25.0
|
|
Oriental Fruit Moth
|
1.1
|
0.3
|
0.9
|
0.5
|
|
Lesser Appleworm
|
0.2
|
2.0
|
2.4
|
1.5
|
|
Codling Moth
|
0.4
|
0.9
|
0.6
|
0.1
|
|
Obliquebanded Leafroller
|
0.4
|
0.6
|
1.0
|
0.2
|
|
Fruittree leafroller
|
0.0
|
0.0
|
0.0
|
0.0
|
|
Sparganothis fruitworm
|
0.2
|
0.0
|
1.0
|
0.1
|
|
Tufted apple budmoth
|
0.1
|
0.0
|
0.0
|
0.0
|
|
Variegated leafroller
|
0.3
|
0.0
|
0.3
|
0.3
|
|
Dogwood borer
|
0.0
|
0.4
|
0.0
|
0.0
|
|
Apple maggot
|
1.0
|
0.7
|
0.8
|
0.2
|
Return to top
Upcoming Pest
Events | Trap Catches | Insects
2003
FRUIT ARTHROPOD PEST REVIEW
(Art Agnello &
Dave Kain, Entomology, Geneva)
It's a little difficult to accept the notion that summer
is on its way out; despite our going through a few stretches of hot and
muggy weather, the psychological threshold that satisfies the establishment
of there having actually been a summer (sort of like the opposite of a
chilling requirement) was not solidly met in most people's minds this
year. And that certain fall chill during the dawn and dusk hours assures
us that we'd better forget about there being anything more than maybe
a nice mild autumn to look forward to from now on.
Insects and mites also seemed to take the cue this season,
and acted nearly like they had decided to give us a break for once (although
we wouldn't want to appear reckless, it's probably late enough to risk
the jinx of any last gasp blow-ups by saying this now). At any rate, insect
and mite life cycles can't go on indefinitely, so this is probably a good
time to cast a preliminary evaluation of the past season's arthropod features.
Regardless of how abnormally the rest of the growing
season proceeded, we actually enjoyed one of the most gradual and normal-seeming
spring periods experienced in NY in many years. It was a bit wet, of course,
but the main problem is that this never transitioned into a good ol' summer
pattern. But about that rain -- it did a world of good in acting to oppose
many of the potential early season pests: European red mite, spotted
tentiform leafminer, and rosy apple aphid, along with pear
psylla and oriental fruit moth, were all denied favorable conditions
for gaining that early season foothold that often preceeds a bad year,
so most of these problems were neatly sidestepped this spring, and in
some cases for the rest of the year. On the other hand, of course, we
had one of our famously long plum curculio oviposition periods
because of the cool temperatures, so growers who failed to keep the fruitlets
diligently protected until about 2nd cover are seeing now why they needed
to stay on the ball.
As it does most years, obliquebanded leafroller
appeared pretty much on schedule, but generally responded well to treatment
in orchards with reliably heavy populations. Larvae seemed to be about
as evident in early July as in most typical seasons, but we're hoping
that fruit damage will turn out to be down once the harvest is complete.
The internal worm infestations of the last few years are puzzling
by their scarcity, at least so far. Certainly, most growers who experienced
problems were much more attentive to their mid- and late summer spray
programs this year, but there's probably also a weather-related factor
working in this "down" portion of the cycle, so we expect much fewer complaints
in this area. (This is always the riskiest part of the year-end summary,
since these pests really can flourish at the bitter end.)
Apple maggot seems to have been well represented
in many of the old haunts where we've been trapping for it -- high numbers
were not uncommon; however, we haven't yet seen evidence that the summer
management programs weren't up to the task of dealing with them. One late
season pest that we're still stretching to protect against is woolly
apple aphid. Colonies have been troubling for much of the last half
of the summer, and we don't really have many effective tactics to try
against them.
Finally, the wait-and-see category contains a few of
the usual members: Comstock mealybug, mirid bugs, stink bugs, and
San Jose scale. These do a good job of staying concealed until loads
start hitting the packinghouse door, so there may yet be a noteworthy
postscript to this season -- later than normal, like just about everything
else that happened this year.
Return to top
LET IT RAIN
(Dave Kain & Art Agnello, Entomology, Geneva)
[Hotlink author names to dpk@cornell.edu
and ama4@cornell.edu]
Proving once again that "normal" is anything but, this
season started cool and wet and never varied much from that scenario.
Degree-day accumulations put us about a week behind normal, and even further
behind last year, throughout the season. Seemingly incessant rains made
scab management particularly challenging and provided the pat answer to
all the questions regarding unusual insect occurrences — It's the
weather.
Following are comparative listings of some of the pest
events that occurred this season (in Geneva) with calendar and degree-day
normals. The values and dates are given +/- one standard deviation; i.e.,
events should occur within the stated range approximately 7 years out
of 10.
| |
DATE
|
DEGREE DAYS (BASE 43°F)
|
|
EVENT
|
Normal (+/-days)
|
2002
|
Normal (+/-DD)
|
2002
|
|
AMERICAN PLUM
BORER
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
17-May(+/-7)
|
12-May
|
422(+/-104)
|
377
|
|
1st flight peak
|
2-Jun(+/-6)
|
16-Jun
|
705(+/-143)
|
891
|
|
1st flight subsiding
|
29-Jun(+/-7) |
3-Jul |
1360(+/-206) |
1286 |
|
2nd flight start
|
11-Jul(+/-5)
|
21-Jul
|
1625(+/-239)
|
1784
|
|
2nd flight peak
|
28-Jul(+/-7)
|
18-Aug
|
2190(+/-234)
|
2579
|
| |
|
|
|
|
|
APPLE MAGGOT
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
29-Jun(+/-9)
|
14-Jul
|
1379(+/-202)
|
1600
|
|
Peak
|
4-Aug(+/-13)
|
28-Jul
|
2385(+/-208)
|
1970
|
|
Subsiding
|
3-Sep(+/-9)
|
21-Aug
|
3115(+/-282)
|
2663
|
| |
|
|
|
|
|
CODLING MOTH
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
19-May(+/-7)
|
22-May
|
487(+/-103)
|
484
|
|
1st flight peak
|
4-Jun(+/-11)
|
9-Jun
|
808(+/-199)
|
749
|
|
2nd flight start
|
18-Jul(+/-14)
|
14-Jul
|
1884(+/-327)
|
1600
|
| |
|
|
|
|
|
GREEN FRUITWORM
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
4-Apr(+/-8)
|
14-Apr
|
85(+/-38)
|
89
|
|
Peak
|
14-Apr(+/-11)
|
28-Apr
|
139(+/-52)
|
205
|
|
Subsiding
|
6-May(+/-10)
|
19-May
|
333(+/-112)
|
442
|
| |
|
|
|
|
|
LESSER APPLEWORM
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
10-May(+/-9)
|
12-May
|
378(+/-146)
|
377
|
|
1st flight peak
|
20-May(+/-8)
|
19-May
|
548(+/-166)
|
442
|
|
1st flight subsiding
|
19-Jun(+/-9) |
26-Jun |
1164(+/-220) |
1126 |
|
2nd flight starts
|
10-Jul(+/-11)
|
14-Jul
|
1638(+/-329)
|
1600
|
|
2nd flight peak
|
31-Aug(+/-21)
|
14-Jul
|
3175(+/-292)
|
1600
|
| |
|
|
|
|
|
LESSER PEACHTREE
BORER
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
25-May(+/-8)
|
9-Jun
|
578(+/-145)
|
749
|
|
Flight subsiding
|
9-Sep(+/-6)
|
2-Sep
|
3193(+/-217)
|
2945
|
| |
|
|
|
|
|
OBLIQUEBANDED LEAFROLLER
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
10-Jun(+/-5)
|
19-Jun
|
916(+/-87)
|
955
|
|
1st flight peak
|
19-Jun(+/-9)
|
23-Jun
|
1134(+/-194)
|
1031
|
|
2nd flight begins
|
7-Aug(+/-9)
|
7-Aug
|
2486(+/-183)
|
2248
|
| |
|
|
|
|
|
ORIENTAL FRUIT MOTH
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
1-May(+/-8)
|
1-May
|
291(+/-94)
|
248
|
|
1st flight peak
|
13-May(+/-11)
|
12-May
|
419(+/-93)
|
377
|
|
2nd flight begins
|
1-Jul(+/-5)
|
30-Jun
|
1432(+/-145)
|
1204
|
|
2nd flight peak
|
9-Jul(+/-10)
|
7-Jul
|
1763(+/-371)
|
1422
|
|
3rd flight begins
|
11-Aug(+/-9)
|
21-Aug
|
2548(+/-219)
|
2663
|
|
3rd flight peak
|
26-Aug(+/-15)
|
25-Aug
|
2945(+/-317)
|
2766
|
| |
|
|
|
|
|
PANDEMIS
LEAFROLLER
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
4-Jun(+/-8)
|
19-Jun
|
806(+/-52)
|
955
|
|
Flight peak
|
11-Jun(+/-10)
|
19-Jun
|
966(+/-111)
|
955
|
|
Flight subsides
|
3-Jul(+/-6)
|
30-Jun
|
1511(+/-139)
|
1204
|
| |
|
|
|
|
|
PEACHTREE BORER
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
17-Jun(+/-11)
|
3-Jul
|
1055(+/-286)
|
1286
|
|
Flight subsides
|
24-Aug(+/-13)
|
2-Sep
|
2827(+/-302)
|
2945
|
| |
|
|
|
|
|
REDBANDED
LEAFROLLER
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
17-Apr(+/-8)
|
24-Apr
|
179(+/-82)
|
181
|
|
1st flight peak
|
4-May(+/-9)
|
12-May
|
303(+/-78)
|
377
|
|
2nd flight begins
|
1-Jul(+/-6)
|
3-Jul
|
1470(+/-211)
|
1286
|
|
2nd flight peak
|
14-Jul(+/-7)
|
21-Jul
|
1788(+/-271)
|
1784
|
|
2nd flight subsiding
|
5-Aug(+/-11) |
14-Aug |
2394(+/-257) |
2462 |
|
3rd flight begins
|
20-Aug(+/-10)
|
25-Aug
|
2790(+/-169)
|
2766
|
|
3rd flight peak
|
27-Aug(+/-11)
|
2-Sep
|
2979(+/-242)
|
2945
|
| |
|
|
|
|
|
SAN JOSE SCALE
- adult males
|
|
|
|
|
| |
|
|
|
|
|
1st flight begins
|
17-May(+/-8)
|
29-May
|
481(+/-112)
|
574
|
|
1st flight peak
|
30-May(+/-8)
|
9-Jun
|
658(+/-73)
|
749
|
|
2nd flight begins
|
14-Jul(+/-10)
|
28-Jul
|
1685(+/-168)
|
1970
|
|
2nd flight peak
|
7-Aug(+/-9)
|
18-Aug
|
2326(+/-221)
|
2579
|
| |
|
|
|
|
|
SPOTTED TENTIFORM LEAFMINER
|
|
|
|
|
| |
|
|
|
|
|
1st catch
|
19-Apr(+/-7)
|
24-Apr
|
174(+/-64)
|
181
|
|
1st flight peak
|
7-May(+/-7)
|
5-May
|
336(+/-81)
|
280
|
|
2nd flight begins
|
14-Jun(+/-7)
|
23-Jun
|
1059(+/-120)
|
1031
|
|
2nd flight peak
|
7-Jul(+/-11)
|
7-Jul
|
1613(+/-244)
|
1422
|
|
3rd flight begins
|
7-Aug(+/-7)
|
7-Aug
|
2489(+/-170)
|
2248
|
|
3rd flight peak
|
22-Aug(+/-10)
|
14-Aug
|
2849(+/-222)
|
2462
|
| |
|
|
|
|
|
CROP
|
DATE
|
DEGREE DAYS (BASE 43°F)
|
|
PHENOLOGY
|
Normal (+/-days)
|
2003
|
Normal (+/-DD)
|
2003
|
| |
|
|
|
|
|
APPLE (MCINTOSH)
|
|
|
|
|
|
Green tip
|
12-Apr(+/-7)
|
15-Apr
|
120(+/-27)
|
103
|
|
Half-inch green
|
21-Apr(+/-7)
|
21-Apr
|
173(+/-25)
|
166
|
|
Tight cluster
|
29-Apr(+/-6)
|
28-Apr
|
232(+/-19)
|
205
|
|
Pink
|
5-May(+/-6)
|
5-May
|
292(+/-19)
|
280
|
|
Bloom
|
11-May(+/-7)
|
12-May
|
383(+/-37)
|
377
|
|
Petal fall
|
18-May(+/-6)
|
22-May
|
485(+/-44)
|
484
|
| |
|
|
|
|
|
APPLE
(RED DELICIOUS)
|
|
|
|
|
|
Green tip
|
10-Apr(+/-8)
|
17-Apr
|
146(+/-38)
|
132
|
|
Half-inch green
|
18-Apr(+/-9)
|
28-Apr
|
177(+/-31)
|
205
|
|
Tight cluster
|
26-Apr(+/-6)
|
1-May
|
248(+/-27)
|
248
|
|
Pink
|
8-May(+/-7)
|
12-May
|
339(+/-47)
|
377
|
|
Bloom
|
15-May(+/-8)
|
22-May
|
434(+/-66)
|
484
|
|
Petal fall
|
23-May(+/-9)
|
31-May
|
559(+/-89)
|
610
|
| |
|
|
|
|
|
PEAR (BARTLETT)
|
|
|
|
|
|
Bud burst
|
22-Apr(+/-7)
|
17-Apr
|
167(+/-45)
|
132
|
|
Green cluster
|
30-Apr(+/-6)
|
28-Apr
|
238(+/-27)
|
205
|
|
White bud
|
5-May(+/-7)
|
5-May
|
298(+/-43)
|
280
|
|
Bloom
|
8-May(+/-7)
|
12-May
|
350(+/-50)
|
377
|
|
Petal fall
|
15-May(+/-8)
|
19-May
|
442(+/-55)
|
442
|
| |
|
|
|
|
|
SWEET CHERRY
|
|
|
|
|
|
Bud burst
|
21-Apr(+/-8)
|
24-Apr
|
169(+/-26)
|
181
|
|
White bud
|
29-Apr(+/-7)
|
28-Apr
|
218(+/-26)
|
205
|
|
Bloom
|
4-May(+/-6)
|
5-May
|
266(+/-30)
|
280
|
|
Petal fall
|
12-May(+/-5)
|
12-May
|
387(+/-47)
|
377
|
|
Fruit set
|
16-May(+/-5)
|
19-May
|
450(+/-43)
|
442
|
| |
|
|
|
|
|
TART CHERRY
(MONTMORENCY)
|
|
|
|
|
|
Bud burst
|
26-Apr(+/-7)
|
28-Apr
|
208(+/-39)
|
205
|
|
White bud
|
5-May(+/-7)
|
1-May
|
268(+/-29)
|
248
|
|
Bloom
|
10-May(+/-6)
|
9-May
|
351(+/-50)
|
328
|
|
Petal fall
|
17-May(+/-6)
|
19-May
|
458(+/-54)
|
442
|
|
Fruit set
|
23-May(+/-8)
|
22-May
|
545(+/-61)
|
484
|
Return to top
This
material is based upon work supported by Smith Lever funds from the Cooperative
State Research, Education, and Extension Service, U.S. Department of Agriculture.
Any opinions, findings, conclusions, or recommendations expressed in this
publication are those of the author(s) and do not necessarily reflect the
view of the U.S. Department of Agriculture.
Scaffolds
is published weekly from March to September by Cornell University -- NYS
Agricultural Experiment Station (Geneva), and Ithaca -- with the assistance
of Cornell Cooperative Extension. New York field reports welcomed. Send
submissions by 3 p.m. Monday to:
Scaffolds
Fruit Journal
Editors: A. Agnello, D. Kain
Dept. of Entomology, NYSAES
P.O. Box 462
Geneva, NY 14456-0462
Phone: 315-787-2341 FAX: 315-787-2326
E-mail: ama4@cornell.edu
Online
at <http://www.nysaes.cornell.edu/ent/scaffolds/>
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