Survey by mango growers in Phitsanulok

(November 2002)

Pesticide surveys:
Introduction
Survey by vegetable growers Kanchanaburi
Survey by mango growers Phitsanulok
Conclusion

More information:
Risk reduction
Pesticides database
Banned pesticides
Chemical families

In Noenmaprong village (Phitsanulok province), a group of 11 mango growers were trained to conduct cross-sectional survey. These trained farmers observed and interviewed 20 other mango farmers in their community. Then they met several times to analyze the results, which are presented below.

Analysis of pesticides used

Among the 20 farmers 17 different pesticides were being used, including 4 chemicals belonging to WHO classes Ia and Ib. The list included 1 chemical that is banned in Thailand (Monocrotophos), and 2 chemicals that are currently registered but on the “watch list”. The use of these dangerous chemicals was quite common, with 5% of the farmers using chemicals belonging to class Ia and 95% using chemicals classified as Ib.

"Highly toxic pesticides such as Methamidophos are popular among Mango growers."

Farmers observe and take notes on spraying practices of other farmers.

Farmers interview each other before and after spraying sessions.

Observing how a farmer is preparing for a spraying session.

Farmers observed how pesticide from the tank spilled over the back of the spraying farmer. The pesticide used was Methamidophos (WHO class Ib).

"Almost all Mango growers used very toxic chemicals in WHO classes Ia and Ib."

Analysis of the volume and frequency of pesticide use

When the farmers analyzed the amounts used they found that 20 farmers together use 541,984 liter of spray solution each year, which is an average of 28,525 liter per farmer. The days that they are at risk to chemical exposure was on average 22.1 days per year (lowest 10 days, highest 40 days).

"Mango growers spray more than 28,000 liters of pesticide solutions each year."

"Only 13% of the farmers had stored the pesticides properly."

Observations of pesticide storage and disposal of containers

Data of 15 farmers were summarized and it was found that only 2 of them (13%) had stored their pesticides in a safe way. In most cases, the chemicals were stored in the homes of the farmers and were not put behind lock.

Empty containers were not disposed off in a safe way as they were either left at farmers’ homes or they were just left behind in the mango orchard.

Farmers are analyzing the data they collected.

A "normal" way to dispose of empty containers is just dropping them in a corner of the field. A serious risk for children, animals and the environment.

Signs and symptoms

Farmers made observations before and after a spraying session and listed the signs and symptoms on body maps. During their analysis they then summarized these observations in a table.