Pest Control Objectives

Pest Control Objectives

In the course of his work, the author sometimes conducts audits of pharmaceutical plants and medical device manufacturing facilities. In such cases, pest control is always checked.

Pest control is insect and rodent control. The author recommends termite control in addition to this.

Many companies understand that the purpose of pest control (insect and rodent control) is to set traps to prevent insects and rodents from entering the manufacturing facility.

However, that is not the only purpose of pest control.

An important aspect of pest control is constant monitoring and diagnosis of building conditions from captured insects.

For example, there may be gaps or holes in places that are normally out of sight. There may also be food residue or dirt in drains. If white ants have infested the building, there is a possibility that the pillars of the building have been infested. In addition, they may have been brought in along with pallets, etc.

One example experienced by the author was a case of a bird infestation in a clean room. To the author’s surprise, this was caused by a hole in the exhaust vent.

Cause of building entry

Causes of insect and rodent infestation of buildings include the following

  1. Insect infestation in the building (internal outbreak type)
  2. When insects are attracted to the building (invasive type)
  3. When insects are brought in attached (attached type)
  4. When rodents enter a building

In the internally generated type, insects occur when food is present in the building, left as residues, or when drains have not been adequately cleaned. Characteristics of internally generated insects can be determined by the presence of many identical insects or insects in various stages of development.

In the invasive type, the causes of attraction to buildings include light, odor, wind direction, warmth, and building color. Countermeasures differ depending on the cause of attraction.

In the case of adherent type, it is sometimes mixed in with materials and pallets for transportation and brought in. This may be the source of internal outbreaks.

In addition, rodents primarily enter through gaps in buildings, especially through drains.

anti-intrusion measures

The following methods shall be used to prevent insect and rodent infestation. Note that there are two types of insects, flying insects and walking insects, and each type of trap is different.

  1. Adoption of double door construction (interlock)
  2. For opening and closing doors that are not of the interlock type, do not open both doors at the same time.
  3. Adoption of semi-airtight and airtight doors
  4. eliminate a gap
  5. If the door is open to the outside and the environment inside and outside is different, caulk the outer circumference of the door appropriately to prevent insects from entering through the gaps in the door.
  6. light control
    (1) Attachment of insect repellent film to glass surfaces
    (2) Adoption of insect-proof shutters
    (3) Adoption of insect-proof lights
    (4) Installation of light traps
  1. Installation of insect traps
  2. Installation of rodent traps
  3. The mesh size of the screens should be at least 20 mesh.
  4. Light from induction lamps, etc., shall not leak outside the warehouse.
  5. Prevent insect infestation through adhesion by cleaning or removing the exterior or checking the exterior when entering the building.
  6. To prevent insects and rodents from entering the workroom, doors shall be opened and closed promptly, and entry into the workroom shall be made promptly.
  7. Minimize open time by incorporating high-speed sheet shutters, etc.
  8. Pay attention to information on abnormal outbreaks (e.g., black-bellied mushroom flies, cave anata ticks, etc.) transmitted by the government.
  9. Various other measures include air flow control, easy-to-clean structure (R structure, with casters), etc.

Monitoring (insect fauna diagnosis)

Through monitoring, problems with structural facilities and poorly cleaned areas (dust, condensation, gaps, etc.) should be identified and objectively verified to ensure that they are not creating conditions that are prone to inhabitation, generation, or infiltration.
The purpose of the insect faunal diagnostic is to establish as many sampling points as possible throughout the mill to conduct an exhaustive survey (sampling extensively) and to determine the dynamics of insects.
To be conducted at the time of new construction or expansion. In addition, it shall be conducted several times a year in order to understand seasonal fluctuations.

  1. Understand the dynamics.
  2. Establish control standard values.
  3. Determine sampling points.

If the monitoring method is determined by the insect layer diagnosis, monitoring should be conducted on a regular basis.
Periodic monitoring is planned and conducted throughout the year, with methods, sampling points, frequency, etc., established for the purpose of continuous monitoring of insect dynamics.
The location of traps during periodic monitoring should be determined based on the results of the insect faunal assessment and in consultation with the insect control contractor. Monitoring should be conducted at locations with a particularly high risk of foreign matter contamination.

  1. Confirm that it is within the control standard.
  2. Identify trends.

In case of deviations from the control standard values during periodic or occasional monitoring, the monitoring will be conducted around the deviation area for about one week to identify the problem areas.
Periodic monitoring will continue after the measures are completed.
In periodic monitoring, conduct about one week around the break area at the time of the break to determine the insects that invade and inhabit the area.


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