Preparing planting materials is a critical step in horticulture crop production, directly impacting crop establishment, growth, and yield. In Kenya’s diverse agricultural environments, from smallholder farms in Meru to large-scale commercial farms in Naivasha, ensuring the safety of workers during this process is paramount. The use of Personal Protective Equipment (PPE) safeguards agricultural workers from exposure to chemicals, physical injuries, and biological hazards that are common during handling and preparation of planting materials. This chapter focuses on the essential PPE used in horticulture crop production, emphasizing their types, specifications, and correct usage within the Kenyan agricultural context.

1.1 Personal protective equipment

Personal Protective Equipment (PPE) forms the first line of defense for agricultural workers involved in preparing planting materials. The PPE not only protects workers from chemical exposures such as pesticides and fertilizers but also from physical injuries like cuts, abrasions, and infections from soil-borne pathogens. In Kenya, adherence to PPE standards is vital for compliance with occupational safety regulations overseen by bodies such as the Directorate of Occupational Safety and Health Services (DOSHS). The following sections explore the key PPE items used in horticultural activities.

1.1.1 Gloves

Types of Gloves Used in Horticulture

Gloves used in horticulture vary based on the nature of tasks and hazards involved. The main types include:

• Latex Gloves: These are flexible and provide good dexterity, suitable for tasks involving light chemical handling and seed sorting. However, latex can cause allergic reactions in some users.
• Nitrile Gloves: Resistant to punctures and many chemicals, nitrile gloves are preferred for handling pesticides and fertilizers. They provide better chemical resistance than latex.
• Rubber Gloves: Heavy-duty rubber gloves protect against corrosive chemicals and water-based solutions. They are commonly used during pesticide mixing and application.
• Leather Gloves: Used mainly for physical protection against cuts, abrasions, and thorns during handling of rough plant materials or tools.
• Cotton Gloves: Provide minimal protection but are useful for light tasks requiring hand comfort and sweat absorption, such as transplanting seedlings.

Specifications and Standards for Gloves

To ensure effective protection, gloves must meet certain specifications:

• Material Integrity: Gloves should be free from holes or tears and made from durable materials suited to the chemicals or hazards encountered.
• Size and Fit: Proper fitting gloves prevent accidents caused by loose or tight gloves restricting hand movement.
• Chemical Resistance: Depending on the agrochemicals used, gloves must resist permeation to prevent skin absorption.
• Comfort and Breathability: Gloves that cause excessive sweating reduce compliance; breathable options encourage longer use.
• Reusability and Maintenance: Some gloves are disposable after single use, while others can be cleaned and reused; the choice depends on the task and contamination risk.

Proper Use and Maintenance of Gloves

Correct usage of gloves maximizes protection and extends their service life:

• Always inspect gloves for damage before use. Discard any with holes or tears.
• Use gloves appropriate for the task; for example, nitrile gloves for pesticide handling and leather gloves for thorny plants.
• Remove gloves carefully to avoid skin contamination, especially after handling chemicals.
• Wash reusable gloves with mild soap and water after use; dry completely before storage.
• Store gloves in a cool, dry place away from direct sunlight to prevent material degradation.

Health and Safety Considerations

Gloves reduce the risk of dermal absorption of harmful substances and protect against mechanical injuries. For instance, at a flower farm in Thika, workers wearing nitrile gloves during pesticide application reported fewer cases of skin rashes. However, improper glove use, such as wearing damaged gloves or using the wrong type, can increase exposure risks. Training on glove selection and use is critical for extension officers advising smallholder farmers.

1.1.2 Facemask

Facemasks are vital PPE components protecting the respiratory system from inhaling dust, spores, and chemical aerosols during planting material preparation. In Kenya, where dust storms and pesticide spraying are common in horticultural zones like Eldoret and Naivasha, facemasks mitigate risks of respiratory illnesses.

Types of Facemasks Suitable for Horticulture

Different facemasks provide varying levels of protection:

• Surgical Masks: Provide basic protection against dust and large droplets but are not effective against chemical vapors or fine aerosols.
• Respirators (N95 or equivalent): Designed to filter out at least 95% of airborne particles, these are essential when handling pesticides or working in dusty environments.
• Reusable Half-face Respirators: Equipped with replaceable cartridges for chemical vapors and particulates, used in intensive pesticide application.
• Cloth Masks: Commonly used for dust but offer minimal protection against chemicals.

Criteria for Selecting Facemasks

Selecting the right facemask requires consideration of:

• Filtration Efficiency: Masks must filter the specific hazards present, such as fine dust or chemical aerosols.
• Fit and Seal: A tight seal around the nose and mouth prevents ingress of contaminants.
• Comfort for Prolonged Use: Lightweight and breathable masks encourage consistent use.
• Reusability and Maintenance: Some masks are disposable; others require cleaning and cartridge replacement.
• Compatibility with Other PPE: Masks should not interfere with eye protection or communication.

Correct Usage and Care of Facemasks

Proper use enhances facemask effectiveness:

• Check the mask for damage or dirt before use.
• Fit the mask snugly over the nose and mouth, adjusting straps to prevent gaps.
• Avoid touching the mask surface during use to reduce contamination.
• Replace disposable masks daily or when damp.
• Clean reusable masks according to manufacturer instructions; replace cartridges regularly.

Respiratory Health Risks and Protection

Workers in horticulture exposed to airborne chemicals or dust are at risk of respiratory diseases such as occupational asthma and chronic bronchitis. For example, county extension officers in Kisumu observed reduced respiratory complaints among farmers who adopted N95 masks during pesticide spraying. Awareness campaigns on respiratory protection can significantly improve worker health.

1.1.3 Gumboots

Gumboots provide essential foot protection for agricultural workers exposed to wet, muddy, and chemically treated environments during planting material preparation. In Kenya’s horticulture sectors, including vegetable farms in Nakuru and flower farms in Naivasha, gumboots prevent injuries and contamination through the feet.

Types of Gumboots Used in Horticultural Activities

Gumboots vary by material and design to match work conditions:

• PVC Gumboots: Waterproof and chemical resistant, suitable for wet and pesticide-exposed fields.
• Rubber Gumboots: Durable and flexible, ideal for muddy terrain and general farm work.
• Steel-toe Gumboots: Provide additional protection against heavy falling objects and machinery.
• Insulated Gumboots: Used in cold or wet environments to keep feet warm and dry.

Specifications and Features

Important gumboot features include:

• Waterproofing: Prevents water and chemical penetration.
• Slip Resistance: Soles with treads reduce slipping on wet or uneven surfaces.
• Durability: Materials must withstand punctures and abrasions.
• Comfort and Fit: Proper sizing prevents blisters and fatigue.
• Ease of Cleaning: Smooth surfaces facilitate removal of soil and chemicals.

Maintenance and Hygiene Practices

Maintaining gumboots extends their usefulness and protects user health:

• Clean gumboots after each use with clean water and mild detergent.
• Dry boots thoroughly before storage to prevent fungal growth.
• Inspect regularly for cracks, holes, or sole wear; replace when damaged.
• Store in a ventilated area away from direct sunlight and chemicals.
• Avoid sharing gumboots to reduce fungal and bacterial infections.

Role of Gumboots in Occupational Safety

Gumboots protect against foot injuries from sharp objects, chemical spills, and infections such as tinea and foot rot. For example, workers in a horticultural cooperative in Meru reported fewer foot injuries after adopting PVC gumboots during planting and pesticide application. Proper use of gumboots complements other PPE to ensure comprehensive protection.

1.1.4 Overall

Overalls are protective garments covering the body to shield workers from chemical splashes, dirt, and physical injuries during planting material preparation. In Kenya, overalls help maintain hygiene and safety in environments where agrochemicals are frequently used.

Types of Overalls Used in Horticulture

Different overalls offer varying protection levels:

• Cotton Overalls: Comfortable and breathable, suitable for general farm work but provide limited chemical resistance.
• Polyester/Cotton Blends: Durable and moderately resistant to chemicals and abrasions.
• Polyethylene Coated Overalls: Provide waterproofing and chemical splash protection.
• Disposable Overalls: Used for high-risk chemical handling to prevent contamination.

Design Features and Specifications

Key features for effective overalls include:

• Full Body Coverage: Cover arms, legs, and torso to minimize skin exposure.
• Adjustable Closures: Elastic cuffs and zippers prevent chemical ingress.
• Breathability: Materials that allow moisture escape increase comfort.
• Durability: Resistance to tears and abrasions enhances longevity.
• Ease of Cleaning: Overalls should withstand repeated washing without degradation.

Correct Usage and Care of Overalls

Proper use and maintenance safeguard workers and prolong garment life:

• Wear overalls fully zipped and secured to prevent exposure.
• Remove overalls carefully to avoid contaminating skin or other clothing.
• Wash overalls separately from personal clothes, using appropriate detergents.
• Inspect regularly for damage and replace when protective qualities diminish.
• Store overalls in clean, dry areas away from chemicals.

Importance of Overalls in Worker Safety and Hygiene

Overalls act as barriers against pesticides and soil contaminants, reducing risks of skin irritation and chemical absorption. For instance, a county government agricultural office in Kisii reported improved worker safety after mandating use of polyethylene-coated overalls during seed treatment operations. Overalls also promote professional appearance and hygiene in agricultural workplaces.

Chapter Summary

This chapter covered the essential personal protective equipment required for safe handling of planting materials, including gloves, facemasks, gumboots, and overalls. It then explored the preparation of planting materials by defining key terms and detailing the various land preparation tools and equipment such as axes, pangas, rakes, slashers, and tillage machinery including hoes, tractors, and ploughs. The use and maintenance of these tools were discussed to ensure their effectiveness and longevity in horticultural practices. The chapter also examined different types of planting materials like seeds, seedlings, cuttings, and suckers, highlighting their characteristics and uses.