Training Community Leaders and Village Health Volunteers: Build a 3 Keeps Team and a Village Spray Squad, a Step-by-Step Training Plan With the SUPER ROTARY Backpack ULV Sprayer

Even the best mosquito sprayer means little if nobody in the village knows when to spray, where to spray and what must happen before spraying starts. This article is a training plan outline for Thai local governments and sub-district health promoting hospitals that want to build two village-level teams working side by side: a "3 Keeps" team that breaks the Aedes life cycle at the source, and a village spray squad ready to act under the supervision of public health officers. The SUPER ROTARY backpack ULV sprayer is used as the main training tool.

1-minute summary

• The problem: Many sub-districts rely on a single spray team from the local government or health center. When dengue cases appear in several villages at once, the team cannot keep up, while village source reduction campaigns happen only occasionally.
• The fix: Train community leaders and village health volunteers (known in Thailand as อสม.) to lead two teams in every village. One handles source reduction; the other is a spray squad trained in safety and machine operation, working with health officers.
• Course structure: preparation, a two-day theory and practice course, a simulation exercise, and monthly follow-up.
• Why SUPER ROTARY: a compact backpack ULV rotary sprayer with a fine mist, durable in the field, suited to both public health and agriculture, and cost-effective. It works well as a village or village-cluster machine.
• Next steps: Call 065-556-6294 or LINE @whd268 for a quotation and specifications, request a demonstration and training, then budget and procure according to regulations.

Three villages, one spray team and a phone that would not stop ringing (illustrative scenario)

Wichai is the director of a sub-district health promoting hospital in northeastern Thailand. His sub-district has more than ten villages and several thousand residents. Every year, in the wettest months, dengue cases appear scattered across many villages. There is only one spray team for the whole sub-district: two health center staff, two local government employees and a machine that has been in service for years.

One week in July, suspected dengue cases were reported from three villages at almost the same time. Wichai's phone rang constantly. One village headman asked why the neighboring village had been sprayed and his had not. Another said residents had started posting on Facebook: "Three days waiting for spraying, and now the neighbor's child has a fever too." The spray team worked from before dawn until night, while still having to investigate cases and survey larvae.

Wichai noticed a pattern. In villages where volunteers were strong and the headman ran source reduction activities regularly, cases rarely grew into clusters. In villages that held a cleanup only on campaign day once or twice a year, the first case was often followed quickly by a second and a third. He told the chief administrator of the Subdistrict Administrative Organization that the problem was not only the mosquito fogger. It was people and systems at village level.

Together they set a goal: by the next fiscal year, every village would have a 3 Keeps team working continuously, and every cluster of villages would have a trained spray squad with a ready-to-use ULV sprayer and a clear procedure for coordinating with the health center. The first task was to write a training plan that actually works, not a half-day lecture after which everyone goes home.

The pain points: why one spray team is not enough

1. Health: time is the critical variable

Aedes mosquitoes transmit dengue, chikungunya and Zika. When a mosquito bites a feverish patient, the virus multiplies inside the insect for a period before it can pass the infection on. That is why response around a patient's home must be fast, following public health guidance: remove breeding sites and spray to kill adult mosquitoes within roughly a 100-meter radius of the patient's home. If the spray team arrives late, the chance that neighbors become infected rises. Schoolchildren, older adults and people with chronic illness are most at risk of severe disease.

2. Budget: the cost of waiting

When cases cluster, the agency spends far more on insecticide, fuel and overtime, and families face higher medical costs, compared with investing early in a village team that prevents spread. Training community leaders and volunteers is not an expense; it is an investment that cuts outbreak costs.

3. Public image and trust

When one village is sprayed before another, residents often see it as unfair, even when the real reason is simply the order in which reports came in. Messages in LINE groups and on social media quickly put local executives and health staff under pressure. A village team that can talk to residents immediately reduces these misunderstandings dramatically.

4. Staff workload

Health center staff handle primary care, health promotion, home visits and disease control. When everything depends on a few officers, mosquito control becomes an emergency that crowds out other work all rainy season. Delegating part of the work to trained village teams, under officer supervision, frees staff for technical tasks such as case investigation and data analysis.

5. Sustainability

Occasional cleanup campaigns produce only short-term results, because new water-holding containers appear every time it rains. The Aedes life cycle from egg to adult takes a little over a week in warm, humid weather, so breeding sites must be removed every week. That only happens when someone in the village is clearly responsible.

Why conventional training rarely produces a working team

• Theory only: participants listen to half a day of lectures about disease and mosquitoes but never touch a real mosquito sprayer or survey larvae. When the time comes, they lack confidence.
• No roles: everyone gets the same knowledge, but nobody knows what they must do, when, and to whom they report.
• No ready equipment: after training, the village has no working ULV sprayer, or only an old one that is hard to start, with no parts and no technician. The knowledge is never used.
• Safety left out: spraying without personal protective equipment, without reading the label or mixing above the recommended rate puts operators and residents at risk and may accelerate insecticide resistance.
• No follow-up: once training ends there are no meetings, no record forms and no refreshers, so the team fades away within months.
• Cheap, non-standard machines: equipment that produces coarse or uneven droplets leaves the team seeing no results, and morale drops.

Village team structure: who does what

Before writing the curriculum, design the team structure. The example below can be adapted to village size and local context.

The key principle is that the village spray squad never works alone. Every chemical application should be decided and supervised by public health officers so it follows technical guidance and safety rules.

Training plan outline: preparation, two full days and follow-up

Phase 0: preparation (roughly two to four weeks before)

• Meet all village headmen to select participants, around four to six per village, split between the 3 Keeps group and the spray group.
• Screen the health of prospective spray squad members, for example not pregnant, no uncontrolled respiratory disease and no known chemical allergy.
• Prepare village maps, larval survey forms, spray log forms and a pre-test.
• Contact the equipment supplier to arrange a trainer to demonstrate operation and maintenance.

Day 1 morning: know the real enemy

• Aedes and the diseases it carries: dengue, chikungunya and Zika, and the danger signs that require urgent medical care, such as persistent high fever, lethargy, abdominal pain, repeated vomiting and bleeding spots.
• The Aedes life cycle: egg, larva, pupa, adult, using pictures and real larvae in containers.
• Aedes behavior: daytime biters, especially in the morning and late afternoon to evening, resting in dark, sheltered corners indoors.
• The 3 Keeps against 3 diseases: keep homes clean and airy so mosquitoes have nowhere to rest, clear rubbish and anything that can hold water, and keep water covered, changing water in vases and plant saucers every week.

Day 1 afternoon: 3 Keeps field practice in a real village

• Practice larval surveys in sample homes, using flashlights to check jars, tanks, buckets, plant saucers, tires and gutters.
• Practice recording data to calculate larval indices, such as the percentage of homes and of containers with larvae, using the forms and criteria set by public health authorities.
• Practice talking politely with householders and encouraging them to act themselves instead of doing it for them and leaving.
• Draw zone maps and assign each volunteer an area.

Day 2 morning: safety and ULV sprayer operation

• ULV principles: a small volume of insecticide broken into very fine droplets that float long enough to contact mosquitoes. This differs from wet spraying, and from a thermal fogging machine, which uses heat to create a visible fog.
• Reading the label: active ingredient, mixing rate, precautions, first aid and container disposal.
• Personal protective equipment: mask, gloves, goggles, long sleeves, long trousers and closed shoes.
• SUPER ROTARY demonstration: components, filling fuel and solution, starting, adjusting the mist, walking technique and shutting down.
• Practice with plain water: every spray squad member carries a real machine and practices walking and spraying with water to learn pace and direction.

Day 2 afternoon: simulation and machine care

• Simulation, "a new case has been reported": receive the call from the health center, draw a radius of about 100 meters on the map, ask householders to cover food, cover aquariums and move pets, then practice spraying house by house in order.
• Working with the 3 Keeps team: the source reduction team clears breeding sites within the same radius, because spraying alone does not break the larval cycle.
• After-use care: rinse the tank, clean the nozzle, store the machine in the shade, log running hours and report anything unusual to a technician.
• Post-test: compare with the pre-test and formally assign roles.

Follow-up phase: weekly and monthly

• The 3 Keeps team visits homes in its zones every week and sends larval survey results to the health center.
• A monthly review meeting looks at larval index trends, local cases and field problems.
• The spray squad starts and checks the machine regularly, even outside outbreaks, so it is always ready.
• Hold a refresher before every rainy season and recruit new members to replace those who leave.

The equipment answer: SUPER ROTARY for village spray squads

The SUPER ROTARY is a backpack ULV rotary sprayer. According to the World Health Disinfection product page:

Beyond the machine itself, WHD holds ISO and GMP, checks every unit before delivery, provides full after-sales service, technicians and spare parts, and meets Thai government equipment standards. This matters for machines spread across many village teams: when one breaks down, it must be repaired quickly with parts available.

Sub-districts with long roads or dense communities can also keep a vehicle-mounted unit such as the AIROFOG UM2 at sub-district level to support village teams, while indoor spaces such as community halls or schools can use an electric ULV cold fogger such as the AIROFOG U260.

10 reasons SUPER ROTARY suits a village spray squad

1. Quick to learn: the backpack design is straightforward, so trained volunteers operate it with confidence.
2. Reaches every lane: compact enough to cover the roughly 100-meter radius around a patient's home thoroughly.
3. Fine ULV mist: uses less insecticide than coarse spraying.
4. Field-durable: suited to being stored in a village and used in real conditions.
5. Cost-effective: lets a sub-district place a SUPER ROTARY mosquito sprayer in several village clusters.
6. Multi-purpose: disease control, agriculture and other vector or nuisance insect control, with correctly chosen chemicals, keeps the equipment productive all year.
7. Faster response: village squads act as soon as officers give the instruction, without waiting for the single sub-district team.
8. Technicians and parts in Thailand: WHD's after-sales service reduces downtime.
9. Training support: the supplier can demonstrate and train, giving the curriculum a genuine practical component.
10. Better public image: residents see their own village team act immediately, building trust in the local government and health center.

Before and after building village teams

Budget and procurement tips for the training project

A village team project has two cost streams that should be kept separate: training and operations, and durable equipment, which must be budgeted in the correct category. Always follow the regulations in force and the advice of your finance and procurement officers.

Write the project so it links training, equipment and outcomes, for example the number of villages with complete teams, the frequency of larval surveys and the time from case notification to field response. These indicators are measurable and help the local council see the value of the project.

Example field perspective

"At first many volunteers were afraid of the machine, afraid of the chemicals, afraid of making mistakes. Once they practiced with plain water and actually walked around the community hall with the sprayer on their backs, the fear disappeared. What worked best was the simulation. Everyone now knows that when the health center calls, who informs the householders, who prepares the machine and who leads the 3 Keeps team in to empty containers. Our village no longer waits in line for the sub-district team, and most importantly, residents have started cleaning up and covering water without being told."

Note: this is a composite perspective based on typical field work, not a quote from any specific person or agency.

Frequently asked questions

Q: Can village health volunteers spray insecticide themselves?
A: Only after safety and operation training, and always under the decision and supervision of public health officers. Officers should set the chemical type and rate, following local guidance.

Q: How many sprayers does a sub-district need?
A: It depends on the number of villages, distances and density. Many areas start with one machine per cluster of nearby villages and add more based on actual use.

Q: If 3 Keeps works well, do we still need a spray squad?
A: Yes. When a dengue case occurs, mosquitoes that may already carry the virus must be killed quickly around the patient's home. Source reduction prevents the next generation; spraying controls adults during an outbreak. Both are needed.

Q: Is a two-day course too long for villagers?
A: It can be split into four half-day sessions across different weeks. Just keep all the practical parts, especially the real larval survey and water-only spraying practice.

Q: Can we train with a thermal fogging machine instead?
A: Thermal foggers are widely used for disease control, but they require more care with heat and fuel. For volunteer teams, a backpack ULV sprayer is usually easier to learn. Choose based on local needs and officer advice.

Q: How can WHD support the training?
A: Call 065-556-6294 or LINE @whd268 to arrange an operation demonstration and maintenance training that fits your curriculum.

Q: How do we know the project is working?
A: Track weekly larval indices, time from case notification to response, repeat cases in the same village and resident feedback, and compare with the period before the teams existed.

3 next steps

1. Call or LINE for a quotation and specifications: share the number of villages, planned spray squads and training dates.
2. Request a demonstration and training: book a trainer to demonstrate the SUPER ROTARY on day two of the course so the team gets hands-on practice.
3. Budget and procure according to regulations: include the equipment in the budget plan alongside training, chemicals and protective gear, then procure following the rules.

Build village teams with both people and tools ready

Talk to World Health Disinfection about backpack ULV sprayers and demonstrations for your training course.

See SUPER ROTARY products and prices, click here

Tel 065-556-6294 · LINE @whd268

Email worldhealthdisinfection@gmail.com

Visit the government mosquito and insect control equipment hub

World Health Disinfection Co., Ltd., 88 268 Kanlapaphruek Road, Bang Khae, Bangkok 10160

Related links

• Government mosquito and insect control equipment hub
• SOLO PORT423 backpack ULV sprayer
• AIROFOG UM2 pickup-mounted 2-nozzle ULV sprayer
• Department of Disease Control, Ministry of Public Health
• WHO: Dengue and severe dengue

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Keywords: mosquito sprayer, mosquito fogger, thermal fogging machine, ULV cold fogger, government mosquito control equipment, vector control, dengue, village health volunteers, community leaders, 3 Keeps, training plan, SUPER ROTARY