Ethrel 720Plant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

For anti-lodging in barley or crop thinning, loosening or ripening in various crops as specified in the DIRECTIONS FOR USE table.

GENERAL INSTRUCTIONS
IMPORTANT
Barley: Use only on vigorously growing and potentially high yielding crops which are likely to lodge.

MIXING
Half fill the spray tank with water, add the required amount of product, then the remainder of water and mix well. DO NOT use alkaline water.

APPLICATION
Special instructions for Tree and Vine Crops
Dilute spraying
· Use a sprayer designed to apply high spray volumes, up to the point of run-off and matched to the crop being sprayed.
· Set up and operate the sprayer to achieve even coverage throughout the crop canopy. Apply sufficient spray volume to cover the crop to the point of run-off. Avoid excessive run-off.
· The required spray volume to achieve point of run-off may be determined by applying different test volumes, using different settings on the sprayer, or from industry guidelines or other expert advice.
· Add the amount of product specified in the DIRECTIONS FOR USE table for each 100 L of water. Spray to the point of run-off.
· The required dilute spray volume to achieve point of run-off will change and the sprayer set up and operation may also need to be changed, as the crop grows.

Concentrate Spraying
· Concentrate spraying is not appropriate with this product.

Compatibility
Apples, table grapes, wine grapes, macadamias and peaches
Certain applications in the above crops require the addition of a surfactant (wetter) when using Ethrel. In such cases, select a wetter that is registered for use with plant growth regulators (e.g. Kendeen 20 Surfactant or Spraymate Chemwet 1000) and apply at the recommended rate for the crop situation. If unsure of the appropriate product or product rate, seek further advice from Bayer CropScience, the surfactant manufacturer, your chemical distributor or other advisor. DO NOT tank mix this product with sodium chlorate. This mixture will, when heated, emit toxic chlorine fumes.

EQUIPMENT
Ethrel is corrosive to metals. Mix only the quantity of spray required for immediate use and do not allow to stand in metal containers for more than 2 hours. Flush equipment thoroughly with water after use.

DIRECTIONS FOR USE
Restraints
DO NOT apply to weak or stressed plants.
DO NOT apply Ethrel 720 following application of sodium chlorate, magnesium chlorate or diquat.
DO NOT apply if rain is expected within 8 hours of application.
DO NOT apply if mean day/night temperatures are expected to fall below 18°C.

APPLES
(Jonathan, Delicious)
Mode of action: Advancement of maturity; improvement of red colour
State: Qld, NSW, Vic, SA, WA only
Rate (Dilute spraying): 35 to 65 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water and add ‘stop drop’
WHP: 7 days

(Tydeman's Early)
Mode of action: Advancement of maturity; improvement of red colour
State: Tas only
Rate (Dilute spraying): 25 mL/100 L water and add ‘stop-drop’
WHP: 7 days

Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Ensure fruit has reached marketable size before treatment and keep trees under observation after spraying. Apply 2 to 3 weeks before normal harvest period and 7 to 14 days before desired harvest date. Ensure fruit is picked at the correct stage of
maturity, as fruit not harvested will quickly become over-ripe.
Note: For best results spray when temperatures are between 15 °C and 32 °C. Continuing low temperatures will advance maturity and colouration; continuing warm to high temperatures, both day and night, will advance maturity but may reduce colouration, so use lower rate. Use higher rate for quicker response. Add a ‘stop-drop’ to prevent premature loosening of fruit. Thorough coverage is essential. Apply to fruit only for the fresh fruit market or short-term storage.

(Gravenstein, Golden Delicious, Jonathan and Red Delicious)
Mode of action: Thinning *
State: Vic, SA only
Rate (Dilute spraying): 15 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply at full bloom OR up to 1 week following full bloom. A second thinning spray 10 to 14 days after the Ethrel 720 spray may be necessary. On Gravenstein and Golden Delicious apply carbaryl or 5 to 7.5 ppm NAA (use higher rate for maximum thinning). On Jonathan and Red Delicious apply carbaryl or 4 ppm NAA.

(Golden Delicious, Stark Crimson and Legana)
Mode of action: Thinning *
State: Tas only
Rate (Dilute spraying): 35 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply at the balloon blossom stage using a high volume sprayer at 4000 L/ha. DO NOT apply if rain is imminent. DO NOT use in sequence or in mixtures with NAA. If maximum temperatures are below 13 °C after spraying, inadequate thinning may result, or if above 18 °C excessive thinning may result.

(Golden Delicious, Red Delicious, Jonathan, Granny Smith)
Mode of action: Thinning *
State: WA only
Rate (Dilute spraying): 35 to 40 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 7 days

(Lady William)
Mode of action: Thinning *
State: WA only
Rate (Dilute spraying): 45 to 65 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 7 days

Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Only use high concentration when heavy set expected.
*Note: For all thinning applications: The complex nature of fruit set and the possible variable action of chemical thinners due to weather conditions, make it difficult to give set recommendations and growers should consult their local agronomist.

(All varieties)
Mode of action: Aid complete removal of fruit from trees and encourage a biennial bearing habit (Excessive vegetative growth will be suppressed and the following bloom stimulated)
State: NSW, SA only
Rate (Dilute spraying): 65 to 135 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply just prior to full bloom OR 5 to 6 weeks later during early morning or late afternoon when slow drying conditions occur. Ensure thorough coverage of foliage and flowers or fruit. Note: Under normal weather conditions use lower rate for Delicious and higher rate for Jonathans as they are difficult to de-fruit. Consult the local Department of Agriculture for specific recommendations on other varieties. Warm weather following treatment will improve results, but if temperatures below 18 °C prevail after spraying, fruit removal may be reduced, in the latter case use a higher dose rate. Fruit will loosen in 7 to 10 days and thinning should be complete within 2 to 3 weeks. Limbs can be lightly shaken to aid removal after this time.

Mode of action: Retard vegetative growth and stimulate flowering of young apple trees in the following season.
State: NSW, SA only
Rate (Dilute spraying): 65 to 135 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply from full bloom to 6 weeks after full bloom. Ensure thorough coverage. Trees should be large enough to support an increased crop of apples before being treated. Increase rate towards 133 mL/100 L to maximise thinning and stimulation of blooms during the following season. DO NOT apply if harvesting fruit in same season as flowers or fruitlets will be partially or completely thinned.

TABLE GRAPES
(Barlinka)
Mode of action: To promote early uniform colouring
State: NSW, SA only
Rate (Dilute spraying): 15 to 20 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 14 days

(Red Emperor, Red Prince, Red Malaga, Cardinal, Muscat of Hamburg)
Mode of action: To promote early uniform colouring
State: NSW, Vic, SA, WA only
Rate (Dilute spraying): 25 to 40 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 14 days

(Flame seedless)
Mode of action: To promote early uniform colouring
State: WA only
Rate (Dilute spraying): 25 to 40 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 14 days

Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply when 5 to 30% of the berries are coloured (2-4 weeks prior to expected harvest). Use the higher rates to maximise the colouring effects required. Ensure thorough coverage of bunches although the foliage need not be completely covered.
Note: Ethrel 720 may slightly reduce firmness of grapes. DO NOT use on grapes intended for long storage.

WINE GRAPES
(Semillon)
Mode of action: Aids to mechanical harvesting
State: NSW only
Rate (Dilute spraying): 40 to 130 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply 7 days before expected harvest. Thorough coverage of upper and lower leaf surfaces is essential. Note: Some leaf yellowing and leaf fall, which is not detrimental to vines, may occur. The concentration to use will depend on a number of factors such as seasonal conditions, crop size, weather conditions (before and after application) and trellis type. Therefore, before applying consult the local Department of Agriculture for specific recommendations.

MANDARINS
(Imperial)
Mode of action: Thinning to increase fruit size, to reduce size of heavy crop and to even out the production cycle
State: Qld, NSW, SA, WA only
Rate (Dilute spraying): 35 to 40 mL/ 100 L water
WHP: Not required
State: Vic only
Rate (Dilute spraying): 25 to 35 mL/ 100 L water
WHP: Not required

ORANGES
(Navel)
Mode of action: Thinning to increase fruit size, to reduce size of heavy crop and to even out the production cycle
State: Qld, NSW, Vic, SA, WA only
Rate (Dilute spraying): 35 to 40 mL/100 L water
WHP: Not required
State: Qld, NSW, SA, WA only
Rate (Dilute spraying): 35 to 40 mL/100 L water
WHP: Not required
State: Vic only
Rate (Dilute spraying): 40 to 45 mL/100 L water
WHP: Not required

Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply during the early stage of fruit development for thinning and correction of the habit of alternate heavy and light crops. Apply as foliar spray when fruitlets are about 10 to 15 mm in diameter and when natural fruit drop is occurring. This is usually in November in Qld; December in SA and WA; and intermediate in NSW and Vic. Weather conditions influence the degree of thinning and care must be taken not to over-thin. Note: Fruitlets should fall off 7 to 14 days after application. Aim to apply 13 to 15 L of spray per 4 to 5 m high tree. Use the higher rate when a very heavy crop is evident. DO NOT apply in cold weather (less than 18 °C) OR when rain is likely within 1 to 2 days of spraying. DO NOT add surfactants or wetting agents as leaf fall may be increased. See also GENERAL INSTRUCTIONS.

PEACHES
Mode of action: Advancement and concentration of maturity
State: Vic only:-Goulburn Valley
Rate (Dilute spraying): 15 mL PLUS recommended rate of a suitable wetter (refer to Compatibility section) per 100 L water
WHP: 6 weeks
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply once as foliar spray after commencement of the final fast growth stage. Timing depends on variety. Determine by measuring twice weekly, fruit circumference, of 20 tagged fruit/block. After rapid growth stage determined, wait 3 to 4 days for further confirmation, then spray. Thorough coverage is essential. Note: Instances have been recorded where this product, when applied in peaches at apparently the correct time, has resulted in premature fruit drop, fruit gumming and fruit splitting. See also GENERAL INSTRUCTIONS.

PINEAPPLES (plus urea)
Mode of action: Initiation of flowering
State: Qld only
Rate:
General: Individual plant: 80 mL PLUS 5 kg urea in 100 L of water. Apply 30 mL solution / plant
Boom spraying: 1.6 L PLUS 100 kg urea in 2000 L of water/ha.
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply February-March. Note: Rate should be doubled for plant crops that are growing vigorously at the time of application.
State: Qld only
Rate:
General: Individual plant: 40 mL PLUS 5 kg urea in 100 L of water. Apply 30 mL solution / plant
Boom spraying: 0.8 L PLUS 100 kg urea in 2000 L of water/ha.
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply May-June OR September-October. Note: See above - February/March application with urea.

PINEAPPLES (plus urea)
Mode of action: Initiation of flowering in ratoon
State: Qld only
Rate:
General: Individual plant: 25 mL/10 L of water. Apply 30 mL solution /plant
Boom spraying: 6.0 L/2000 L of water/ha.
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply February-March. Note: Use on the final crop in the block before eradication of the crop. Pineapples treated at the above time will be ready for picking 7 to 10 months after application.

PINEAPPLES (without urea)
Mode of action: Initiation of flowering in ratoon
State: Qld only
Rate:
General: Individual plant: 7 mL/10 L of water. Apply 30 mL solution /plant
Boom spraying: 1.5 L/2000 L of water/ha.
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Apply May-June OR September-October.
Note: See above - February-March application without urea.

PINEAPPLES
Mode of action: Fruit ripening
State: Qld only
Rate:
Boom spraying: 1.7 L/1000 L of water/ha.
WHP: 7 days
Critical comments (Apply by dilute spraying equipment only. Refer to Application section in GENERAL INSTRUCTIONS. Concentrate spraying is NOT appropriate for these uses.):
Ethrel 720 for ripening should only be used on even crops successfully induced for flowering with Ethrel 720. DO NOT use on fields intended for ratoon production. Treatment should be made when the forced fruit are beginning to show the first colour break. An initial harvest may be necessary to remove more advanced fruit before applying Ethrel 720. The remaining treated fruit will be ready for harvest at least 7 days following the Ethrel 720 ripening application. DO NOT use on fruit intended for the fresh fruit market. Ethrel 720 for ripening is NOT SUITABLE FOR USE ON SUMMER PLANT CROPS because of scattered fruiting and high risk of forcing young suckers. Where natural fruiting has occurred prior to chemical induction, these natural fruit must be picked before Ethrel 720 ripening. Treatment too early can result in a loss in yield and a reduction in fruit sugar levels.

BARLEY
Mode of action: Antilodging
State: Qld, NSW, Vic, Tas, WA only
Rate: 335 or 500 mL/ ha
WHP: 1 days

(Barley varieties: Weeah, Malebo, Parwan only)
Mode of action: Antilodging
State: SA only
Rate: 335 or 500 mL/ ha
WHP: 1 days

Critical comments: Use the higher rate on tall, vigorous crops, on varieties susceptible to heavy lodging and on irrigated crops. Apply once only, between early to late boot stage, but before awns or spikes emerge. DO NOT apply to crops under moisture or disease stress or to crops that have already lodged. DO NOT apply if rain is expected within 4 hours or if temperature is less than 18 °C.

SUGARCANE
Mode of action: To increase early season c.c.s.
State: Qld, NSW only
Rate: 1.0 L/ha
WHP: 6 weeks
Critical comments:Apply from the beginning of March until the end of April on sugarcane to be harvested from mid June until mid August. The sugarcane juice purity should preferably be lower than 75% at the time of treatment. DO NOT apply to sugarcane under stress e.g. From excessive moisture, dry conditions, lodging, disease or insect infestation. Post spraying stresses will reduce the probability of response. DO NOT apply more than once a season.

TOMATOES
Mode of action: Accelerate ripening, increasing yield of marketable fruit
State: All States
Rate: 1.2 L in 440 to 880 L of water per hectare
WHP: 7 days
Critical comments: Apply once in the season. Ensure thorough coverage of fruit and foliage, when fruit is 5 to 30% pink or red. To determine this, pull a few plants, shake off all fruit, weigh and determine above percentage. Optimum harvest maturity is expected 14 to 21 days after spraying. DO NOT use on greenhouse crops. Note: Temperatures below 18 °C retard colour development and may extend the interval between treatment and harvest. Treatment may cause some yellowing of foliage or defoliation. Sun scald or exposed fruit may occur under high temperature conditions following treatment.

NOT TO BE USED FOR ANY PURPOSE OR IN ANY MANNER CONTRARY TO THIS LABEL UNLESS AUTHORISED UNDER APPROPRIATE LEGISLATION.

WITHHOLDING PERIODS (WHP)
Barley: DO NOT HARVEST FOR 1 DAY AFTER APPLICATION.
Apples, macadamia nuts, pineapples, tomatoes, wine grapes:
DO NOT HARVEST FOR 7 DAYS AFTER APPLICATION.
Table grapes: DO NOT HARVEST FOR 14 DAYS AFTER APPLICATION.
Peaches and sugar cane: DO NOT HARVEST FOR 6 WEEKS AFTER APPLICATION.
Grazing: DO NOT GRAZE LIVESTOCK ON TREATED AREAS