APPLE FOURTH COVER SPRAY
Effectiveness rating: E = excellent, G = good, F = fair
| Disease | Effectiveness | Suggested Chemicals | 100 gal Dilute | Acre Concentrate |
| Scab and mildew | See tight cluster - 2nd cover sprays | 13. Ziram 76DF or WDG | 2 lb | 6.5-8 lb |
| Brooks spot | E =
19, 20, 25, 26, 28, 29 |
19. 2Sovran 50WG | 10-16 oz | 4.0-6.4 oz |
| G = 13, 27 | 20. 2Flint 50WG | -- | 2.0-2.5 oz | |
| Sooty blotch and fly speck | E =
19, 20, 25, 26, 28, 29
G = 13, 27 |
25. Topsin-M 70W + Captan 50W | 2-3 oz + 1 lb | 8-10 oz + 3-4 lb |
| Black rot and white rot | E = 28, 29
G = 19, 20, 25, 26, 27 F = 13 |
26. Topsin-M 70W + Ziram 76DF or WDG | 2-3 oz + 1 lb | 8-10 oz + 3-4 lb |
| 27. Captan 50W | 2 lb | 6.5-8 lb | ||
| Bitter rot | E = 29 G = 13, 19, 20, 27, 28 F = 25, 25 |
28. Captan 50W + Ziram 76DF or WDG + Topsin-M 70W | 1 lb +
1 lb + 2-3 oz |
3-4 lb
+ 3-4 lb + 8-10 oz |
| 29. 3Pristine 38WG |
-- |
14.5 oz |
See cautions and summer disease management comments under third cover spray p. 45. Observe days-to-harvest limitations on all pesticides (Table 22). Do not apply mancozeb or Polyram within 77 days of harvest. Do not apply more than 30 lb active ingredient of Captan per acre per year. If mildew is a problem, maintaining mildew protection until terminal shoot growth hardens off will reduce the amount of mildew that overwinters in the buds. This will reduce the severity of mildew next year. Regrowth late in the season may require additional protection to prevent heavy overwintering.
2Use
higher rates
and shorter intervals if bitter rot pressure is high. While beneifits
for
summer disease control are recognized, ratings for rot diseases are
still
under evaluation. Caution is advised on the use of the materials where
bitter rot pressure is heavy.
3Limit the number of applications of Pristine and similar modes of action to four/yr; do not make more than two sequential applications of Pristine before alternating to a fungicide with another mode of action.
APPLE FOURTH COVER SPRAY
Effectiveness rating: E = excellent, G = good, F = fair
| Insects/Mites | Effectiveness | Suggested Chemicals | 100 gal Dilute | Acre Concentrate |
| Redbanded leafroller (RBLR) | E = 16, 24, 26, 27, 28, 29, 31, 32, 34, 35 |
1. Lannate 90SP | 4 oz | 12 oz |
| G = 2, 3, 4, 14 |
2. Guthion 50W | 8-10 oz |
1.5-2 lb | |
| Mites (ERM)1 | E = 12, 19, 20, 21, 23 |
3. Imidan 70WSB | 16-21 oz | 3-4 lb |
| G = 7, 13, 18 |
4. Bacillus thuringiensis | See label | See label | |
| Codling moth (CM) | E = 2, 3, 24, 26, 27, 31, 35 |
5. Aza-Direct | -- | 1 qt |
| G = 1, 5, 8, 10, 11, 14, 16, 34 |
6. Thionex 50WP or 3EC | 1 lb or 21 fl oz | 3 lb or 4 pt | |
| Variegated leafroller and tufted apple budmoth (VLR & TBM) | E = 316, 24, 28, 29, 31, 32, 34, 35 |
7. Vydate 2L | 1 pt | 3 pt |
| G = 2, 3, 4, 14, 26, 27 |
8. 8Assail 30SG | -- | 2.5-8.0 oz | |
| 9. 3Actara 25WG |
-- |
2.0-5.5 oz |
||
| 10. 3Calypso 4F |
||||
| Japanese beetle (JB) | E = 14, 17 |
11. Avaunt 30WDG | -- | 5-6 oz |
| G = 1, 8 |
12. 9Nexter
75WP |
-- | 4.4-5.2 oz | |
| Rose leafhopper (RLH)3 | E = 1, 6, 8, 9, 10, 15, 22 |
13. Vendex 50W | 6 oz | 18 oz |
| G = 7, 11, 14, 17, 26, 27 |
||||
| Apple maggot (AM)4 | E = 2, 3 |
14. 2Sevin XLR PLUS | 2 pt | 6 pt |
| G = 1, 8, 10, 11, 17, 26, 27, 28, 29, 30 |
15. Provado or Pasada 1.6F | 1-2 fl oz | 4-8 fl oz | |
| Oriental fruit moth (OFM) | E = 2, 3, 25, 26, 27, 31, 35 |
16. Intrepid 2F | -- | 8-16 fl oz |
| G = 1, 5, 8, 10, 11, 14, 16, 24 |
17. 6Surround WP | 25 lb | -- | |
| Woolly
apple aphid (WAA) |
G = 6, 30 , 33 |
18. Acramite 50WS | -- | 12-16 oz |
| 19. Zeal 72WG |
-- |
2-3 oz |
||
| 20. Fujimite 5EC |
10 fl oz |
2 pt |
||
| 21. Kanemite 15SC | -- | 31 fl oz | ||
| 22. Clutch 50WDG |
-- |
3 oz |
||
| 23. Envidor 2SC |
-- |
16-18 fl oz |
||
| 24. 5Rimon 0.83EC |
-- |
20-40 fl oz |
||
| 25. CheckMate OFM-F | -- | 1.3-2.9 fl oz | ||
| 26. No. 1 + No. 2 | 2 oz + 5 oz | 6 oz + 14-18 oz | ||
| 27. No. 1 + No. 3 | 2 oz + 10 oz | 6 oz + 32 oz | ||
| 28. SpinTor 2SC | 1.25-2.5 fl oz | 5-10 fl oz | ||
| 29.
Entrust 80WP |
0.5-0.75
oz |
2-3 oz |
||
| 30.
Diazinon 50WP or 4E |
1 lb
or 1 pt |
3 lb
or 3 pt |
||
| 31. Delegate 25WG |
-- |
4.5-7 oz |
||
| 32. Proclaim 5SG |
0.8-1.2 oz |
3.2-4.8 oz |
||
| 33. Movento 2SC | -- |
6-9 fl oz |
||
| 34. Belt 4SC |
-- |
3-5 fl oz |
||
| 35. Altacor 35WDG |
-- |
2.5-4.5 oz |
1 See note (1), p. 63
2 Sevin XLR Plus poses less risk to honey bees than other Sevin formulations, especially when used in concentrate sprays of 30 gallons per acre (1:39 dilution ratio). However, some additional bee safety is obtained at more dilute rates. Frequent applications may be necessary to control new immigrating beetles. Mite build up can be expected. Also see note 12, p. 57.
3 Lower rate is effective against RLH.
4 See note (3), p. 63.
5 See note on CM, OFM and TBM on p. 1 for timing recommendations based on DD.
6 For effective control of JB, apply before adult activity on trees begins.
7
Use 12-16 fl oz for CM and OFM control.
82.5-4.0
oz/A
for RLH; 5.5-8.0 oz/A for CM, JB, AM and OFM.
9Use
8.8-10.7
oz/A for TSM.
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