APPLE SECOND COVER SPRAY1

Effectiveness rating: E = excellent, G = good, F = fair


Disease Effectiveness Suggested Chemicals 100 gal Dilute Acre Concentrate
Scab E = 3, 5, 6, 7, 8 10, 11, 12, 14, 15, 16, 17, 19, 20 2. Captan 50W 1.5 lb 6.0 lb
  G = 2, 13 3. Rubigan 1E + Captan 50W 3 fl oz + 1 lb 9 fl oz + 3.25 lb
  F = 22 5. Rubigan 1E + Ziram 76DF or WDG 3 fl oz + 1 lb 9 fl oz + 3.25 lb
Powdery mildew E = 3, 5, 6, 7, 8, 10, 11, 12, 19, 20, 24 6. Rubigan 1E + mancozeb 75DF 3 fl oz + 1 lb 9 fl oz + 3 lb
  G = 14, 15, 16, 17, 22 7. Rubigan 1E + Polyram 80DF 3 fl oz + 1 lb 9 fl oz + 3 lb
Rusts E = 5, 6, 7, 8, 10, 11, 12, 15, 16, 17, 24 8. Rally 40WSP + Captan 50W 1.25-2.0 oz + 1 lb 5.0-7.5 oz + 3.25 lb
  G = 3, 13, 14 10. Rally 40WSP + Ziram 76DF or WDG 1.25-2.0 oz + 1 lb 5.0-7.5 oz + 3.25 lb
Rots and frogeye leaf spot G = 2, 13, 19, 20 11. Rally 40WSP + mancozeb 75DF 1.25-2.0 oz + 1 lb 5.0-7.5 oz + 3 lb
  F = 3, 5, 6, 7, 8, 10, 11, 12 12. Rally 40WSP + Polyram 80DF 1.25-2.0 oz + 1 lb 5.0-7.5 oz + 3 lb
    13. Ziram 76DF or WDG 2 lb 6.5 lb
    14. Procure 50WS + captan 50W 3.0 oz + 1 lb 12.0 oz + 3 lb
    15. Procure 50WS + mancozeb 75DF 3.0 oz + 1 lb 12.0 oz + 3 lb
    16. Procure 50WS + Polyram 80DF 3.0 oz + 1 lb 12.0 oz + 3 lb
    17. Procure 50WS + ziram 76DF or WDG 3.0 oz + 1 lb 12.0 oz + 3.25 lb
    19. Sovran 50WG 10-16 oz 4.0-6.4 oz
    20. Flint 50WG -- 2.0-2.5 oz


22. Sulfur 2-3 lb 7-10 lb


24. Triadimefon 50DF 0.5-1.0 oz 2-4 oz

1 CAUTION: Do not apply more than 24 oz of Triadimefon 50DF per acre per season. In some years, primary scab and rust inoculum may be depleted by the time for the second cover spray. If this is the case and primary scab has been well controlled, the spray program should be aimed more at control of "summer diseases" including Brooks spot, sooty blotch, fly speck, and rots. If mildew is a problem, maintain mildew protection until shoot growth hardens off.

Note: Pound for pound, the EBDC fungicides are the most active fungicides available for bitter rot control. Where bitter rot has been difficult to control EBDC's should be used to their fullest advantage, approaching the allowable 77 day pre-harvest interval. Different spray schedules should be considered based on groupings of cultivars by expected harvest dates: Early cultivars - Gala and Ginger Gold; Mid-season - Red Delicious and Golden Delicious; Late season cultivars (later EBDC use permitted by calendar date - Rome, York, Fuji and Granny Smith. Note that EBDC use must not exceed 21 lb/A/yr when used later than petal fall.

APPLE SECOND COVER SPRAY 1

Effectiveness rating: E = excellent, G = good, F = fair


Insects/Mites Effectiveness Suggested Chemicals 100 gal Dilute Acre Concentrate
Tentiform Leafminers (TLM) (2nd generation) E = 8, 9, 10, 11, 17, 24, 26, 32, 33, 35, 36, 39
 1. Esteem 35W -- 4-5 oz
  G = 2, 6, 16 2. Lannate 90SP 4 oz 12 oz
Mites (ERM/TSM)1 E = 13, 21, 22, 23, 25
 3. Guthion 50W 8-10 oz 1.5-2 lb
  G = 8, 14, 18, 20
 4. Imidan 70WSB 16-21 oz 3-4 lb
Codling moth (CM) E = 3, 4, 26, 30, 31, 35, 39
 5. Bacillus thuringiensis See label See label

G = 1, 2, 6, 9, 11, 12, 16, 19, 28, 38
 6. Aza-Direct --
 1 qt
San Jose scale (SJS)2 E = 1, 29
 7. Thionex 50WP or 3EC 1 lb or 21 fl oz 3 lb or 4 pt
  G = 2, 17, 34, 37
 8. Vydate 2L 1 pt 3 pt
Variegated leafroller and tufted apple budmoth (VLR & TBM)3,7 E = 19, 26, 32, 33, 35, 36, 38, 39
 9. 4Assail 30SG --  2.5-8.0 oz

G = 3, 4, 5, 16, 30, 31
 10. Actara 25WG
 --
 2.0-5.5 oz


11. Calypso 4F
 1-2 fl oz
 4-8 fl oz
 
12. Avaunt 30WDG -- 5-6 oz
 
13. 9Nexter 75WP
 -- 4.4-5.2 oz
Green aphid (SA/AA) E = 9, 10, 11, 15, 17, 24, 37
 14. Vendex 50W 6 oz 18 oz
  G = 2, 7, 8, 30, 31
 15. Beleaf -- 2-2.8 oz
Oriental fruit moth (OFM)8 E = 3, 4, 27, 30, 31, 35, 39
 16. 5Sevin XLR PLUS 2 pt 6 pt
  G = 2, 6, 9, 11, 12, 16, 19, 26
 17. Provado or Pasada 1.6F 1-2 fl oz 4-8 fl oz
 Wolly apple aphid (WAA)
  G = 7, 34, 37
 18. 6Ultra-Fine oil 2 gal --
    19. 8Intrepid 2F -- 8-16 fl oz


20. Acramite 50WS -- 12-16 oz


21. Zeal 72WG
 --
 2-3 oz


22. Portal 5EC
 10 fl oz
 2 pt


23. Kanemite 15SC -- 31 fl oz


24. Clutch 50WDG
 --
 3 oz


25. Envidor 2SC
 --
 16-18 fl oz


26. 7Rimon 0.83EC
 --
 20-40 fl oz
    27. CheckMate OFM-F -- 1.3-2.9 fl oz


28. CM virus
 --
 6.8-13.5 fl oz (Carpovirusine)
3-6 fl oz (Cyd-X)


29. Centaur 70WP
 --
 34.5 oz
    30. No. 2 + No. 3 2 oz + 5 oz 6 oz + 14-18 oz


31. No. 2 + No. 4 2 oz + 10 oz 6 oz + 32 oz


32. SpinTor 2SC 1.25-2.5 fl oz 5-10 fl oz


33. Entrust 80WP
 0.5-0.75 oz
 2-3 oz


34. Diazinon 50WP or 4E 1 lb or 1 pt 3 lb or 3 pt


35.  Delegate 25WG
 --
 4.5-7 oz


36. Proclaim 5SG
 0.8-1.2 oz 3.2-4.5 oz


37. Movento 2SC
 --
 6-9 fl oz


38. Belt 4SC
 --
 3-5 fl oz


39. Altacor 35WDG
 --
 2.5-4.5 oz

1 Mites are laying eggs at this time; two consecutive sprays are needed where mites are a problem and predators are not numerous enough to provide control. Continue monitoring for Stethorus punctum. Start monitoring Amblyseius fallacis, predaceous thrips, mirids, and Orius species.

2 SJS crawlers appear now. Yellow crawlers may be detected by capturing them on a ring of black electical tape tightly encircling a scaley branch, sticky side out. Tape should be observed and replaced every other day.

3 Members of the leafroller complex will begin laying eggs. Start looking for egg masses while monitoring orchard. Determine species present using pheromone traps.

4 2.5-4.0 oz for TLM and SA/AA; 5.5-8.0 oz for CM and OFM.

5 See note (12), p. 57

6 See note (15), p. 57

7 See note on CM and OFM on p. 1 for timing recommendations based on DD.

8 Use 12-16 fl oz for CM and OFM control.

9Use 8.8-10.7 oz/A for TSM.


 
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