cultivating 100,000 hectares of cactus after addressing the cochineal infestation is a significant undertaking that requires capital for restoration and sustainability. Here’s a breakdown of what the primary expenses would likely involve:

1. Pest Control and Soil Restoration
Ongoing Pest Control: Even after eliminating the initial infestation, ongoing measures (biological control agents, organic insecticides) will be necessary to prevent re-infestation.
Soil Preparation and Health Monitoring: Ensuring soil fertility after pesticide application or infestation damage could require fertilizers, organic soil amendments, or treatment for soil-borne pathogens.
Estimated Cost: $500 - $1,000 per hectare ($50 million - $100 million total).
2. Replanting and Maintenance
Seedling Production and Planting: Growing cactus pads in nurseries and planting them on 100,000 hectares requires labor, equipment, and materials.
Irrigation and Maintenance: In the early stages, particularly in drier areas, irrigation will support plant establishment.
Estimated Cost: $800 - $1,200 per hectare ($80 million - $120 million total).
3. Infrastructure and Logistics
Fencing and Protection: Preventing overgrazing and protecting against wildlife might require fencing.
Transportation and Equipment: Large-scale operations need vehicles, tractors, and specialized equipment for cactus planting and maintenance.
Estimated Cost: $200 - $400 per hectare ($20 million - $40 million total).
4. Training and Community Engagement
Training for Local Farmers: Investing in training for sustainable cultivation, pest monitoring, and harvesting techniques helps ensure long-term success.
Community Education Programs: Awareness efforts about preventing future infestations and protecting biodiversity.
Estimated Cost: $50 - $100 per hectare ($5 million - $10 million total).
5. Research and Development
Research on Cochineal-Resistant Varieties: Developing or sourcing resistant cactus varieties could reduce the risk of future infestations.
R&D on Sustainable Practices: Continuous research on organic pest control, cactus nutrition, and ecosystem health will be beneficial.
Estimated Cost: $10 million - $20 million (one-time investment).
Total Estimated Capital Requirement
Based on the above factors, the total estimated capital required to cultivate and maintain 100,000 hectares of cactus could range from $165 million to $290 million.

Additional Considerations:
Partnerships and Grants: Government funding, international environmental grants, and partnerships with NGOs could offset some costs.
Revenue from By-products: Once established, the cactus can provide income from its fruits, cochineal dye (if sustainably harvested), and other cactus-based products.
This investment can restore the ecosystem and establish a productive, resilient cactus industry in southern Morocco.