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 |
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 |
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, 26 |
28. Captan 50W + Ziram 76DF + 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. 76. 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 benefits 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 = 15, 23, 25, 26, 27, 29, 30, 32, 33, 34,
35 |
1. Lannate 90SP | 4 oz | 12 oz |
| G = 2, 3, 13 |
2. Imidan 70WSB | 16-21 oz | 3-4 lb | |
| Mites (ERM)1 | E = 11, 18, 19, 20, 22, 36 |
3. Bacillus thuringiensis | See label | See label |
| G = 6, 12, 17 |
4. Aza-Direct or Neemazad | -- | 1 qt | |
| Codling moth (CM) | E = 2, 23, 25, 29, 33, 34, 35 |
5. Sivanto 200SL |
-- | 7-10.5 fl oz |
| G = 1, 4, 7, 9, 10, 13, 26, 31, 32 |
6. Vydate 2L | 1 pt | 3 pt | |
| Variegated leafroller and tufted apple budmoth (VLR & TBM) | E = 15, 23, 26, 27, 29, 30, 32, 33, 34, 35 |
7. 7Assail 30SG | -- | 2.5-8.0 oz |
| G = 2, 3, 13, 14, 25, 26 |
8. 3Actara 25WG | -- | 2.0-5.5 oz | |
| 9. 3Calypso 4F | 1-2 fl oz |
4-8 fl oz |
||
| 10. Avaunt 30WDG | -- | 5-6 oz | ||
| Japanese beetle (JB) | E = 13, 16 |
11. 9Nexter 75WP | -- | 4.4-5.2 oz |
| G = 1, 7 |
12. Vendex 50W | 6 oz | 18 oz | |
| Rose leafhopper (RLH)3 | E = 1, 5, 7, 8, 9, 14, 21, 34 |
13. 2Sevin XLR PLUS | 2 pt | 6 pt |
| G = 6, 10, 13, 16, 25, 26, 37 |
14. 3Admire Pro or Pasada 1.6F | -- 1-2 fl oz |
1.4-2.8 fl oz or 4-8 fl oz |
|
| Apple maggot (AM)4 | E = 2 |
15. Intrepid 2F | -- | 8-16 fl oz |
| G = 1, 7, 9, 10, 16, 25, 27, 28 |
16. 6Surround WP | -- | 25 lb | |
| Oriental fruit moth (OFM) | E = 2, 24, 25, 29, 33, 34, 35 |
17. Acramite 50WS | -- | 12-16 oz |
| G = 1, 4, 7, 9, 10, 13, 15, 21, 23, 26, 31,
32 |
18. Zeal 72WG | -- | 2-3 oz | |
| Woolly apple aphid (WAA) |
E = 28 |
19. Portal 5EC | 10 fl oz | 2 pt |
| G = 37 | 20. Kanemite 15SC | -- |
31 fl oz | |
| Brown marmorated stink bug
(BMSB) |
See
BMSB note |
21. Belay 2.13SC | -- | 6-12 fl oz |
| 22. Envidor 2SC |
-- |
16-18 fl oz |
||
| 23. Rimon 0.83EC |
-- |
20-40 fl oz |
||
| 24. CheckMate OFM-F | -- | 1.3-2.9 fl oz | ||
| 25. No. 1 + No. 2 | 2 oz + 10 oz | 6 oz + 32 oz | ||
| 26. Tourismo 3.5SC |
-- | 15-17 fl oz | ||
| 27. Entrust 2SC |
-- |
15-17 fl oz |
||
| 28. Diazinon 50WP |
1 lb |
3 lb |
||
| 29. Delegate 25WG |
-- |
4.5-7 oz |
||
| 30. Proclaim 5SG |
0.8-1.2 oz |
3.2-4.8 oz |
||
| 31. Maydex | -- |
0.5-3 fl oz |
||
| 32. Belt 4SC |
-- |
3-5 fl oz |
||
| 33. Altacor 35WDG |
-- |
2.5-4.5 oz |
||
| 34. Voliam flexi 40WG |
-- |
4-7 oz |
||
| 35. Exirel |
-- |
8.5-17 fl oz | ||
| 36. Nealta | -- |
13.7 fl oz | ||
| 37. Closer 2SC |
-- |
1.5-2.75 fl oz |
1 See note (1), p. 77
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. 77.
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. Apples treated with Surround
after 2nd cover may not be acceptable for sale to processors due
to residue.
72.5-4.0
oz/A
for
RLH; 5.5-8.0 oz/A for CM, JB, AM and OFM.
8 All
uses of Thionex on apples end on July 31, 2015.
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