Bayer launched “Vayego,” an innovation to control stem borers and leaf rollers in rice fields, and introduced Nativo and Etiage for rice care from booting to heading stages of growth.
On 17 July 2026, Bayer Thai Company Limited organized the Bayer Rice Expo 2026. “From Strong Seedlings to Strong Ears with Bayer.” At Kla Krang Seed Company in Nakhon Sawan Province, Bayer welcomed more than 1,000 farmers from Nakhon Sawan, Uthai Thani, Lopburi, and Phitsanulok provinces to learn about rice field management according to growth stages. The event featured the launch of Vayego, an innovative insecticide for managing stem borers and leaf rollers in rice fields, and presented crop protection innovations Nativo and Etiage through demonstration plots to support appropriate planting plans, enhance production efficiency, reduce damage from diseases and pests, and promote rice quality.
During the event, Bayer shared systematic knowledge on rice field management, highlighting guidance on selecting crop protection products suited to each rice growth stage, from tillering to pre-harvest.
Additionally, the event provided education on proper and safe product use, selection of suitable spraying equipment and nozzles, and the application of modern agricultural technology such as drones to improve field care efficiency. The Department of Agriculture collaborated in sharing knowledge and guidelines for appropriate crop protection product use with farmers.
Mr. Weeraphon Charoenpanich, Managing Director and Head of Crop Science Business for Thailand, Cambodia, and Myanmar at Bayer Thai Company Limited, stated, “Amid challenges from unpredictable weather, rising production costs, and outbreaks of diseases and pests, proper rice field care at each growth stage is crucial to improving field management efficiency and production cost control. Bayer is committed to bringing knowledge and innovation to support Thai farmers in planning suitable cultivation, enhancing production efficiency, and improving rice quality.”
Guidelines for Rice Field Care According to Growth Stages.
Systematic rice field care begins at the tillering stage (approximately 25–30 days old). About 5–7 days after the first fertilizer application, farmers can consider using Vayego to manage early-stage rice pests such as leaf rollers, leaf folders, and stem borers. One 250 ml bottle covers up to 7 rai and is suitable for drone spraying.
When rice reaches the booting stage (about 50–60 days old), approximately 5–7 days after the second fertilizer application, rice may face both insect pests and fungal diseases. At this stage, Vayego can be used to manage leaf rollers, leaf folders, and stem borers, while Nativo helps prevent and control significant rice diseases such as sheath blight and leaf blast, depending on field conditions and product label recommendations.
About 20–25 days before harvest, a critical period for yield quality, Etiage helps prevent rice diseases affecting yield and grain quality, including grain discoloration. It also maintains the appearance of rice grains, making them desirable to mills and buyers. Etiage is a concentrated cream formula, easy to mix and use, suitable for drone spraying. One 500 ml bottle covers up to 8 rai.
Bayer advises farmers to select products based on pest and disease occurrence, field conditions, and to strictly follow product label instructions to ensure proper and site-specific rice field care.
Mr. Weeraphon added, “This knowledge sharing and field management guidance demonstrate Bayer’s commitment to supporting farmers in properly caring for rice at each growth stage—from pest surveillance and disease management to pre-harvest grain quality care—to help farmers systematically meet cultivation challenges and maximize value each production season.”
The Bayer Rice Expo reflects Bayer’s dedication to working alongside Thai farmers by promoting knowledge, technology, and appropriate use of crop protection products to support production efficiency, product quality, and sustainability in Thai agriculture under the mission “Health for All, Hunger for None.”