What type of organism or chemical compound is effective in killing fungi and fungal spores?

Fungicides are specifically designed to target and eliminate fungi and their spores. These compounds work by disrupting the cellular processes of fungi, inhibiting their growth, or causing cell death. Fungicides can be used in various settings, including agriculture to protect crops from fungal diseases, in gardening, and for treating infections caused by fungi in medical applications.

The other options refer to substances targeting different types of organisms or problems. Herbicides are used to kill plants or weeds, pesticides target a broader range of pests including insects and arthropods, while insecticides are specifically formulated to eliminate insects. Each of these compounds has a distinct mechanism of action tailored to its particular target, which is why fungicides are the appropriate choice for combating fungal threats.