growers@sgcotton.com.au Roger Tomkins - Greenmount Press

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were applied with a Kubota B7100 highboy boom sprayer at 110 L/ha with 3.5 bar pressure. The sprayer was fitted with xL 01 non drift nozzles, three per row (one each side of the row on droppers and one over the top of the row on a rigid frame). Pre-treatment assessments were made the day prior to treatment application. Post-treatment assessments were made at four, nine and 14 days after treatment (DAT). Pest and beneficial numbers were determined using a beat sheet at 3 x 1 metre row sections per plot. PCS mortality was corrected by using the Abbott (1925) formula. The data was subjected to analysis of variance and mean results were compared using Tukey’s family error rate. Pre-treatment population The pre-treatment cotton stainer population was two to seven per metre, 99 per cent of which were adults. Only two groups of beneficials, brown smudge bug (BSB) and spiders, were present in the trial. The population of BSB was 2 to 5 per metre and spider numbers were five to eight per metre. Effect of insecticides on PCS Percent corrected mortality of PCS for different treatments are presented in Figure 1. These results show that Pegasus consistently outperformed the other treatments, by reducing the PCS population by 70 to 87 per cent at 4 DAT, 71 to 83 per cent at 9 DAT and 56 to 78 per cent at 14 DAT. While Shield at a low rate plus salt reduced the population by 75, 66 and 70 per cent at 4, 9 and 14 DAT respectively, Shield at full rate and low rate alone had very little effect. Danadim reduced the population by 53 to 70 per cent only at 4 DAT with efficacy diminishing thereafter. The results also show that when salt is mixed with a low rate of Pegasus and Danadim, efficacy did not increase. But when salt is mixed with a low rate of Shield, efficacy increased significantly (by up to 50 per cent) compared to a low rate of Shield alone. Impact on beneficials The brown smudge bug population was reduced by more than 60 per cent across the treatments after spraying, but also in the control plots. BSB numbers never recovered and therefore this data was not analysed any further. The impact of the insecticides on spiders is summarised in Figure 2. The terms ‘very low’, ‘low’, ‘moderate’ and ‘high’ used in this document were adopted from the Cotton Pest Management Guide 2011–12. The results show that the impact of all rates of Pegasus on spiders was high (>50 per cent reduction) and that of Danadim was low to moderate (12 to 27 per cent reduction). The impact of Shield on spiders was very low to low (0 to 18 per cent reduction). Conclusions Pegasus provided a high level of control of PCS up to 9 DAT. Thereafter effectiveness was reduced, but provided more than 50 per cent control (see Figure 1) suggesting that residual effect of Pegasus against PCS was adequate. Shield provided control only when mixed with salt. The Shield and salt mixture also provide good control of mirids (see The Australian Cottongrower 30(4) 2009, page 37–38). Danadim provided little effect on PCS suggesting that this insecticide may not be suitable for PCS control. Given the fact that PCS usually infests cotton late in the season when whitefly and aphids are also likely to occur, the use of Pegasus for the control of all these pests will give an added advantage to growers. We would like to thank Scot Campbell of DAFF Queensland, Kingaroy for his assistance with spraying and Kate Charleston of DAFF Queensland, Toowoomba for valuable suggestions. This work was funded by The Cotton Research and Development Corporation. Disclaimer: Please note, there are currently no insecticides registered for control of pale cotton stainer in cotton. Always read and follow label directions. FIGuRE 2: Impact of different treatments on spiders in Bollgard II cotton. Error bars indicate the standard error of the mean 56 — The Australian Cottongrower August–September 2012
NEW Holland’s most powerful tractor, with outputs as high as 669 of maximum engine horsepower, is available in two versions: a standard ‘Row Crop’ and a heavy duty ‘High Power’ chassis to satisfy all farming needs. The standard ‘Row Crop’ chassis has been developed with tight-turning, row crop producers in mind following in-depth customer consultation. The heavy duty ‘High Power’ chassis models are the most powerful four wheel drive tractors on the market and are perfect for extensive small grain growers, owner operators and large arable farmers. Thanks to New Holland’s soil-friendly tyre offering, the T9 range gives a significant advantage in terms of agronomy courtesy of reduced soil compaction and scaring. The ultimate operator environment featuring SideWinder II and whisper quiet cab New Holland undertook extensive research with current users before designing the new T9 cab. The resulting best-in-class cab makes the T9’s impressive proportions shrink around the operator. The cab is packed with ingenious features that make farming easier. One example is the multi-award winning SideWinder II armrest that offers the ultimate in ergonomic operation, as all controls naturally fall to hand. The CommandGrip is used to control all of the primary functions with simple one touch operation. The T9 range can be factory specified with New Holland’s integrated IntelliSteer auto-guidance precision farming system. This complete and integrated package ensures the ultimate in ease of operation. The system is managed courtesy of the IntelliView touch screen colour monitor, which also gives operators access to a whole range of operating parameters for constant monitoring and adjustment to ensure optimum productivity and efficiency. The Integrated Control Panel (ICP), which is positioned to the right hand side of the operator, enables users to regulate or fine tune a host of tractor parameters during working for maximum productivity and efficiency. Features such as Engine Speed Management and Terralock Traction Management can be controlled through the intuitive panel to ensure the T9 range always works at peak performance to guarantee the very highest outputs, and again a one touch interface without the need for complex menus or proceedures. New Holland’s trademark sloping bonnet design has been integrated to further enhance visibility when manoeuvring, and the 360° lighting package ensures that even in poor light conditions, there is no loss in productivity. One of the industry’s quietest cabs offers a spacious and relaxing operating environment, courtesy of the quiet running Cursor 9 and 13 engines. Powerful FPT Cursor engines use ECOBlue SCR technology to offer lower operating costs The ECOBlue SCR technology offers significant performance advantages. Cursor 9 and 13 SCR engines benefit from increased power of between 390hp - 669hp courtesy of New Holland’s Engine Power Management System. news & new products New Holland’s T9 range: Large scale farming with ease With up to 40 per cent torque rise, the T9 range is able to tackle tough conditions with the most demanding wide implements without downshifting, to offer customers the ultimate in productivity and efficiency. Best-in-class hydraulic performance The new T9 range offers the best hydraulic performance in its segment courtesy of up to eight rear-mounted hydraulic remotes. It makes light work of even the most intensive hydraulic applications. Ground speed management for precision speed control In order to offer optimised productivity and fuel efficiency, New Holland have developed the Ground Speed Management (GSM) concept for the T9 range. Similar in operation to a CVT transmission, the operator sets the ideal working speed and then the engine rpm and the gears are automatically calibrated to ensure the most efficient operation. Improved tyre offering for reduced compaction and maximum traction All T9 ‘Row Crop’ chassis models can be fitted with extra tall RCI 50 tyres for reduced soil compaction, whilst improving the traction performance due to the longer tyre footprint. A wide offering of dual or triple tyres provides tailored performance through true power to ground traction with a large footprint for reduced soil compaction and additional floatation. August–September 2012 The Australian Cottongrower — 57
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August-September 2012 www.cottongro
Page 3 and 4:
In this issue... 2012 Cotton Grower
Page 5 and 6: The trouble with buying old technol
Page 7 and 8: We’re with you from the beginning
Page 9 and 10: BE READY FOR ULTIMATE PRODUCTIVITY
Page 11 and 12: Roger Tomkins: 0409 100 036 Louise
Page 13 and 14: Field proven irrigation power John
Page 15 and 16: 16th Cotton Conference roundup AFTE
Page 17 and 18: Delegates may have found out more t
Page 19 and 20: You’re in control of your future.
Page 21 and 22: 2013 FARM STUDY TOURS For More Info
Page 23 and 24: Water Matters… Series supported b
Page 25 and 26: Valley ® Strongest in the industry
Page 27 and 28: Nutrition feature… Impact of nitr
Page 29 and 30: (ADVERTORIAL) Local Trials Show Bio
Page 31 and 32: SOIL organic carbon (SOC) is an imp
Page 33 and 34: and minimise the loss of stubble-C.
Page 35 and 36: WORLD COMMODITY WATCH India Specula
Page 37 and 38: documented, the Chinese state reser
Page 39 and 40: 3100% Australian Cotton 3100% Austr
Page 41 and 42: for the position between the gin st
Page 43 and 44: The trial crop has yielded around s
Page 45 and 46: FIGuRE: 3 Relationship between EM34
Page 47 and 48: Temik, is in short supply and is sc
Page 49 and 50: The joys (or otherwise) of tractor
Page 51 and 52: in Australia), when it finally erup
Page 53 and 54: Germinating ideas By CSD Extension
Page 55: Evaluation of insecticides for cont
Page 59 and 60: Students visit cotton districts CAL
Page 61 and 62: District Reports… Central Queensl
Page 63 and 64: Darling Downs The 2012 cotton seaso
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growers@sgcotton.com.au Roger Tomkins - Greenmount Press

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