Page 190 - Shaping A Sustainable Future

Eco-Solution 1: Waste Segregation Eco-Solution 2: Integrated Pest
Management (IPM)
here is a sump for proper waste segregation on site.
It was noted that some waste was left in piles without The nursery manager should be IPM trained so
proper segregation into different types of waste. It is that chemical pesticides are reduced, emphasising
recommended that on-site waste segregation (at the the biological and physical control of insect pests.
project sites) be conducted. If this is not possible, it can Documentation should be established on the application
be done at a specific drop-off area at the nursery (see of all methods of pest control at the nursery. A gradual
Figure 13). implementation of non-chemical methods of control
will enhance the environmental sustainability of the
nursery.

Eco-Solution 3: Alternative Chemicals

The use of alternative chemicals based on environmentally
friendly formulations should be introduced wherever
possible. For example, bio-pesticides can be used to
target some insect pests at the nursery. These substances
are generally made from natural substances that have
less impact on the environment. Some examples of bio-
pesticides that are currently used in the market include
Neem, Baculoviruses and Trichoderma.
Figure 13: Suggested waste segregation area layout.

Eco-Solution 4: Solar Powered Aerator
A shredder that was previously used on-site is now in a
state of disrepair. A shredder helps reduce the particle As the aerator is running for 24 hours, it will be
size of the horticulture waste, allowing more waste advantageous to use a solar-powered aerator. The
to be collected & recycled. This will reduce transport aerator is critical to avoid excess chemical use to control
charges for waste disposal, as a typical wood shredder algae growth and mosquito-breeding on site. With a
can reduce waste down to 10% of its original volume. battery backup, a grid-tied system will reduce energy
This would mean that the equivalent ten skid tank consumption to run 24 hours without disruption.
transport trips would be reduced to a single trip. The
fuel consumption of shredders is typically 0.5 litres of
diesel per m3. Therefore, 8.7 litres of diesel is required
per skid tank. The shredder should be placed in the
waste segregation area.

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