Product family and application technology for rice

Question 1

Formulation

Is Rinskor^TM active compatible with commonly used herbicides in today’s market?

Answer 1

Rinskor^TM active is highly compatible with many commonly used herbicides in today’s market. In addition to products that contain Rinskor alone, there will be unique pre-mix formulations powered by Rinskor, which have been optimized to contain other herbicides to help enhance the efficacy, weed spectrum and sustainability of the product line.

Question 2

Formulation

In which formulation type(s) will Rinskor^TM active be available?

Answer 2

Either straight or in pre-mixes, Rinskor^TM active can be formulated as a novel liquid emulsifiable concentrate (NeoEC™), suspension concentrate (SC), oil dispersion (OD), solid granular (GR) or wettable granule (WG), depending on crops and market needs.

Question 3

Formulation

What can I expect from the available Rinskor^TM active formulations?

Answer 3

All the available NeoEC, SC, OD and GR formulations of Rinskor^TM active have been designed to provide superior efficacy, excellent tank mix dilution & compatibility, and favorite toxicology & environmental profiles. Select these products based on factors such as weed spectrum, local practice and country registration.

Question 4

Formulation

What are the key formulation attributes that apply across all products (including NeoEC, OD and SC) containing Rinskor^TM active?

Answer 4

All the Rinskor^TM active formulations have been designed to provide excellent tank mix dilution and compatibility properties, as well as the expected performance under diverse field conditions. They impose a reduced environmental risk since they do not contain petroleum-based solvents, have low VOC for desirable storage and handling, and the co-formulants are predominantly “Green” in the Corteva Co-formulant Toolbox.

Question 5

Formulation

What are the key biology attributes that apply across all product formulations (including NeoEC, OD and SC) containing Rinskor^TM active?

Answer 5

They all provide broad spectrum control of weeds with high efficacy at low use rate, represent alternative mode of action for effective weed control in rice, can be used as part of a herbicide resistance management program, and possess favorable toxicological profiles.

Question 6

Formulation

What are the benefits and concern related to typical EC formulation?

Answer 6

EC stands for emulsifiable concentrate. They provide ease of measure in use because liquids can be conveniently measured in field use settings. They also offer excellent dispersion in water and consistent performance in terms of handling and efficacy. The concern is mainly related to its possible impact on the environment.

Question 7

Formulation

Can you tell the similarities and differences between NeoEC formulations containing Rinskor^TM active and typical EC products?

Answer 7

NeoECs retain the beneficial attributes of ECs and more! NeoEC is registered as a formulation trademark in 63 countries and is an award-winning formulation due to its “natural” components.

Question 8

Formulation

What are the advantages of NeoEC formulations that contain Rinskor^TM active?

Answer 8

The NeoEC formulations contains no petroleum distillates, is low in volatile organic compound (VOC), and has been developed to conveniently deliver the optimal type and level of built-in adjuvant.

Question 9

Formulation

Describe some pre-mixes that contain Rinskor^TM active and other Corteva Agriscience herbicides for effective weed control in rice.

Answer 9

Rinskor^TM active has been pre-mixed with other Corteva herbicides, such as penoxsulam and cyhalofop-butyl, to offer a broader spectrum of weed control and residual activity, to improve its weed control attributes, to meet the various needs of rice and other crops grown around the world, and to enforce a robust resistance management strategy.

Question 10

Formulation

In addition to currently available products, will other Rinskor^TM active formulations be developed by Corteva?

Answer 10

Additional pre-mix formulations containing Rinskor^TM active plus other herbicides will be developed to further strengthen the entire Corteva herbicides portfolio and to offer growers the best options to meet their weed management needs in different cropping systems.

Question 11

Formulation

Should I consider the straight or pre-mixed formulations of Rinskor^TM active for my farm?

Answer 11

Rinskor^TM active straight and pre-mix formulations are available in major rice crop markets, and in other crops for additional uses. All of them provide growers with a new powerful and differentiated alternative for broad spectrum weed control, with crop safety and favorable environmental and toxicological profiles. Users have the freedom to select the product that best fit their needs.

Question 12

Formulation

Is there a difference among Loyant^TM herbicide , Royant^TM herbicide and Divixton^TM herbicide?

Answer 12

They are the same NeoEC product containing 25 g/L Rinskor^TM active. The only difference is the trade names designated for registration in different regions/countries.

Question 13

Formulation

Please list the benefits and value that Loyant^TM herbicide, Royant^TM herbicide and Divixton^TM herbicide will bring to growers.

Answer 13

1. Alternative mode of action; 2. Unique control of Echinochloa grasses, as well as key sedges and broadleaf weeds; 3. Effective post-emergence control of economically important weeds, including ALS, ACCase, HPPD, propanil, quinclorac, glyphosate, and triazine target site resistant biotypes; 4. Selectivity for both japonica and indica rice types; 5. Low use rates; 6. Consistent weed control across variable conditions/water management systems; 7. Rapid degradation in soil and tolerant plant tissue with low persistence in the environment; 8. Favorable environmental fate, toxicology, and ecotoxicology profile.

Question 14

Formulation

Are Xevelo^TM herbicide, Agixa^TM herbicide and Novlect^TM herbicide exactly the same product?

Answer 14

They are all pre-mixes containing Rinskor^TM active and cyhalofop-butyl. However, there is a difference in the ratio of Rinskor: cyhalofop-butyl. For Xevelo^TM herbicide and Agixa^TM herbicides, the ratio is 12 g/L:160 g/L while for Novlect^TM herbicide, it is 20 g/L:100 g/L.

Question 15

Formulation

What are the advantages of Xevelo^TM herbicide, Agixa^TM herbicides and Novlect^TM herbicide as compared with the straight formulation such as Loyant^TM herbicide?

Answer 15

In addition to all the same biological attributes as Loyant^TM herbicide, these Rinskor^TM active + cyhalofop-butyl pre-mixes offer an enhanced spectrum (and a wider application window) of control for secondary grasses. The addition of cyhalofop-butyl provides another herbicidal MOA for resistant management, and will further broaden the weed spectrum, especially the Leptochloa species. Furthermore, with cyhalofop-butyl as the globally recognized standard, rice selectivity/rotation flexibility is further increased.

Question 16

Formulation

Describe the reason why two different formulations of Rinskor^TM active + cyhalofop-butyl mixture are commercialized.

Answer 16

Different ratios of Rinskor^TM active and cyhalofop-butyl are provided to meet geography specific needs.

Question 17

Formulation

Would you please briefly describe Novixid^TM herbicide and Baxiga^TM herbicide?

Answer 17

Novixid^TM herbicide and Baxiga^TM herbicide are different trade names of the same OD formulation containing 12.5 g/L of Rinskor^TM active and 20 g/L of penoxsulam. This OD formulation is another great oil-based formulation that already contains oil-based adjuvants commonly required for superior weed control efficacy.

Question 18

Formulation

I would like to know the differences between Novixid^TM herbicide/ Baxiga^TM herbicide and the straight formulation such as Loyant^TM herbicide.

Answer 18

Novixid^TM herbicide/ Baxiga^TM herbicide (Rinskor^TM active + penoxsulam premix) is an OD while Loyant^TM herbicide is a NeoEC. In addition to the biological attributes of Loyant^TM herbicide, the premix adds extra values. The addition of penoxsulam provides another herbicidal MOA for resistant management, offers an even broader weed control spectrum and longer residual control of key susceptible weeds for up to 6 weeks in rice.

Question 19

Formulation

Please tell me something about Ubeniq^TM herbicide, the SC formulation of Rinskor^TM active for weed management in rice.

Answer 19

This SC formulation contains 300 g/L of Rinskor^TM active. In addition to the biological attributes of the straight formulation such as Loyant^TM herbicide, the water-based formulation and the higher load of active ingredient result in convenient handling. It must be applied with an adjuvant for expected performance, preferably MSO (Methylated Seed Oil).

Question 20

Formulation

In addition to the liquid formulations (NeoEC, OD, SC), are there any other Rinskor^TM active formulations available for weed control in rice?

Answer 20

Several GR formulations of Rinskor^TM active solo or in combination of other actives are in development to offer effective weed control and crop safety when applied in flooded rice paddies as an in-water application. Different GR formulations will be available to meet different market needs. Key markets will include Asia and California rice in the U.S.

Question 21

Formulation

For control of Leptochloa species, the best product I can recommend to my customers is Xevelo^TM herbicide, Agixa^TM herbicides or Novlect^TM herbicide. True or False.

Answer 21

True. Although Rinskor^TM active alone is a broad spectrum herbicide, the addition of cyhalofop-butyl provides another herbicidal MOA to further broaden the weed spectrum, especially the Leptochloa species.

Question 22

Formulation

All of the Rinskor^TM active formulations offer exactly the same features and benefits. True or False.

Answer 22

False. Although they are all great tools for weed control, they may posses some different feature and benefits in terms of efficacy, weed spectrum and resistance management. The product line will equip growers with more freedom and power as they develop their own integrated weed management programs.

Question 23

Formulation

A diverse range of formulation containing Rinskor^TM active will offer weed control to meet the various needs of rice and other crops grown around the world, while helping enforce robust resistance management strategies on the farm. True or False.

Answer 23

True. The rich product portfolio powered by Rinskor^TM active will provide growers with powerful tools to fight against weed infestation under various conditions, and in the meantime to help prevent or delay resistance development.

Question 24

Application

In what types of rice can Rinskor^TM active be used?

Answer 24

Rinskor^TM active can be used for weed control on Indica (long-grain), Japonica (medium-grain) and hybrid rice types, showing good selectivity over a wide window of rice stages. Rinskor also fits well into Integrated Weed Management (IWM) program on Clearfield and Provisia rice, which has been modified to tolerate certain ALS or ACCase herbicides.

Question 25

Application

In what rice growing cultures or geographies can Rinskor^TM active be used?

Answer 25

Rinskor^TM active product line has been successfully used in direct seeded and transplanted rice, either under flooded and irrigated rice growing conditions, in all major rice production areas globally.

Question 26

Application

Rinskor^TM active may be used as a part of a weed management program in a Clearfield/Provisia rice system. True or False.

Answer 26

True. Rinskor^TM active can be used in weed management programs within the BASF Provisia rice system and Clearfield production system. This enables growers to broaden weed spectrum, control ALS or ACCase resistant weeds and serve as an efficient resistance management alternative in these rice cropping systems.

Question 27

Application

What is the most commonly used application rate of Rinskor^TM active for control of a proposed spectrum of weeds, including Echinochloa species?

Answer 27

Rinskor^TM active will control a broad spectrum of weeds, including Echinochloa species at rates around 30 g ai/ha for foliar applications. The rate might vary according to factors such as weed development stage and weed spectrum, as well as local regulations.

Question 28

Application

I can use lower rates (<30 g ai/ha) of Rinskor^TM active alone for control of highly susceptible weeds like some broadleaf and sedges, if Echinochloa pressure is low. True or False.

Answer 28

False. The use of rates lower than 30 g ai/ha (or the lowest rate per label instructions) for foliar applications is not recommended. This is an effective rate to control the whole weed spectrum including Echinochloa. The use of low rates is allowed only if Echinochloa is not present or has been eliminated from the field by a previous herbicide treatment. However in some cases when a premix product (such as Rinskor^TM active+penoxsulam or Rinskor+cyhalofop-butyl) the Rinskor rate could actually be below 30g/ha.

Question 29

Application

What is the maximum rate I can use with Rinskor^TM active and how many applications can be made in a season?

Answer 29

Maximum use rate is the one specified on the label. In most countries 30 g ai/ha for foliar applications is the label rate, and if allowed, it can be sprayed twice in a rice growing cycle for a maximum of 60 g ai/ha. These two application should be done with no less than 10 days interval and only in rice vegetative/tillering stage. The use of the product at higher rates is not supported/recommended by Corteva as it would be a factor to increase risks for weed resistance to Rinskor^TM active. Higher rates could also increase the risk of crop injury.

Question 30

Application

Which types of weeds are among the targets for Rinskor^TM active to control?

Answer 30

Rinskor^TM active has demonstrated control of all major types of weeds in rice including the most important grass, sedge, broadleaf and aquatic weed species. Rinskor is less effective on Scirpus juncoides (Japanese bulrush, SCPJU) which is not a globally important weed.

Question 31

Application

Rinskor^TM active is a broad spectrum herbicide. This means under any circumstances I can always manage my weed population with a single Rinskor application. True or False.

Answer 31

False. Although the spectrum of control by Rinskor^TM active includes many important rice weeds, the use of other herbicides in mixture or in sequential applications may be needed to achieve effective control of the weeds present. Rinskor should be part of a weed management program that integrates effective cultural and herbicidal management practices.

Question 32

Application

Can I spray a Rinskor^TM active product in late post-emergence application as a rescue treatment, as I have several weeds that escaped from an earlier herbicide application?

Answer 32

Rinskor^TM active is not recommended to be used as a salvage treatment when other herbicides have failed and weeds are largely developed. Not only could you get partial control, but you would also be applying a herbicide to a crop that has already suffered from weed competition during the critical growing stages. The best practice is to apply Rinskor at the recommended timing and at the recommended weed size.

Question 33

Application

Would Rinskor^TM active effectively control new weeds emerging after application?

Answer 33

Rinskor^TM active is a post-emergence herbicide that must come in contact with plant tissue to provide weed control. Rinskor will control only emerged or exposed weeds at the time of application.

Question 34

Application

When is the best stage of rice to make an application of Rinskor^TM active?

Answer 34

Rinskor^TM active may be applied to rice from the 2-3 leaf stage with no exposed roots up to 60 days before harvest, or approximately at late boot stage. Timely applications following label recommendations would ensure an effective weed control with the required crop safety. In some countries Rinskor is used as a burndown herbicide on existing weeds before planting of crop.

Question 35

Application

At what growth stage of grass weeds should a Rinskor^TM active application be made?

Answer 35

Grass weeds are better controlled in early development stages and when actively growing. Echinochloa spp. control is better achieved when the weed is in a vegetative stage, within the first 4-leaf stage of development, and before tiller initiation.

Question 36

Application

Broadleaf weeds are so sensitive to Rinskor^TM active that I don’t need to consider their growth stages at all for making a Rinskor application. True or False.

Answer 36

False. Although Rinskor^TM active is highly active on broadleaf weeds, the timing of application still needs to be considered for the best efficacy. It is recommended that the treatment is conducted when broadleaves are up to 20 cm height.

Question 37

Application

Describe the best time to apply a Rinskor^TM active product for control of sedges.

Answer 37

A Rinskor^TM active treatment will result in the best control of sedges when they are at a growth stage of up to 5 to 8 cm height.

Question 38

Application

Timely applications of Rinskor^TM active following label recommendations and local regulations will ensure an effective weed control with the required crop safety. True or False.

Answer 38

True. Appropriate application timing with consideration of crop & weed growth stages and environmental conditions is critical to gain the best results with Rinskor^TM active product.

Question 39

Application

Rinskor^TM active can be applied in tank mix combinations with the most common pre-emergence and post-emergence herbicides in rice. True or False.

Answer 39

True. Rinskor^TM active can be applied in tank mix combinations with the most common pre-emergence and post-emergence herbicides in rice, to get residual weed control and to broaden the weed spectrum. When tank mixing, follow label directions, including application rates as well as precautions and limitations of use on each herbicide label.

Question 40

Application

Can I tank-mix Rinskor^TM active with other crop protection products (insecticides and fungicides) for effective crop management?

Answer 40

Several tank-mix compatibility studies have been carried out by Corteva to validate the possibility of mixing Rinskor^TM active with the most important crop protection products. In case of doubt refer to Rinskor literature, ask your Corteva advisor, or refer to label directions.

Question 41

Application

What is the best adjuvant system to tank mix with the NeoEC/OD formulations of Rinskor^TM active for optimal weed control?

Answer 41

These Rinskor^TM active formulations have been properly balanced with the right amount of adjuvant to offer the required level of control while maintaining the best physical and chemical properties. The addition of extra adjuvant will not offer added benefits in terms of weed control.

Question 42

Application

What are the spray methods recommended for Rinskor^TM active?

Answer 42

Rinskor^TM active can be applied by air or ground, including the use of backpack, tractor, airplane or drone sprayers, according to local regulations. Broadleaf crops are sensitive to Rinskor, therefore proper application is key to avoid drift and potential injury to nearby sensitive crops. Always read and follow the product label before making an application decision.

Question 43

Application

Rinskor^TM active is such a powerful tool, so the only thing I need to consider is the use rate when I make the application. True or False.

Answer 43

False. Factors affecting the effectiveness of weed control and crop selectivity include proper application rate, weed and crop size, daytime and nighttime temperatures, and appropriate soil moisture prior to and following application, among others.

Question 44

Application

Can I use Rinskor^TM active product line for weed management in rice even if field is infested with a mix of different weeds?

Answer 44

Yes, Rinskor^TM active product line is among the best options to deal with this situation. Under regular circumstances, Loyant^TM herbicide will provide effective broad-spectrum control of grass, sedges and broadleaf weeds. Furthermore, other Rinskor-based pre-mixes with other well-known Corteva herbicides are available for added flexibility, consistent weed control, and an even more enhanced weed spectrum, while representing a sound strategy for appropriate resistance management.

Question 45

Application

Now that Rinskor^TM active is a broad-spectrum herbicide, should I depend solely on Rinskor and expect the same level of control against the key weeds in rice?

Answer 45

Weed control is species-dependent. In general, broadleaves are highly susceptible to Rinskor^TM active. Sedges also hold a high level of susceptibility, however some species are better controlled than others. For grass control, Rinskor has demonstrated efficacy for the control of many Echinochloa spp. and some other secondary weeds. The pre-mixes with cyhalofop or penoxsulam offer a wider spectrum of control, including additional grasses, sedges and broadleaf weeds.

Question 46

Application

Will water management play an important role in a weed control program with Rinskor^TM active?

Answer 46

Yes. Adequate water management is key to ensure the efficacy of Rinskor^TM active. It is also important for reducing weed escapes and helping prevent weed resistance. On the other hand, too much water in the rice field may also reduce the efficacy of a Rinskor product. Therefore proper water management is critically important for effective weed control.

Question 47

Application

When making an application of a Rinskor^TM active-containing product, I don’t need to pay attention to the depth of water layer in my paddy field. True or False.

Answer 47

False. Although Rinskor^TM active herbicides are very flexible in their use, following the label and product use recommendations are key for success. To achieve the best results, you should apply the products correctly by following the guidelines, and that includes proper water management.

Question 48

Application

Why it is so critical to maintain sufficient moisture in the field when making an application of Rinskor^TM active product?

Answer 48

Because sufficient moisture will results in healthy rice crop and active growth of weeds. That will strengthen the herbicidal activity of Rinskor^TM active against the weeds while reduce the chance of crop response.

Question 49

Application

To effectively kill the weeds, I should flood the rice field so that all the weed’s foliage is completely submerged under water when I apply a herbicide with Rinskor^TM active. True or False.

Answer 49

False. At the moment of Rinskor^TM active application, at least 75% of the foliage of all weed plants should be exposed so product can contact the plant tissue. This will help the herbicidal activity to take place.

Question 50

Application

Describe the best practice in water management following an application of Rinskor^TM active product in rice.

Answer 50

For best results, reflooding should occur from 1 to 3 days after application and no later than 5 days after application. Keep water levels consistent throughout the season. Properly manage irrigation water to avoid movement of seeds of resistant weeds across fields. Avoid drought conditions with proper irrigation so Rinskor^TM active can display optimum herbicidal performance.