We don't often find flies such a popular topic of conversation, but given recent events, we'd like to seize the moment to share some science-based information about their status as both pests and beneficial insects.

Flies can be nuisance insects both indoors and outdoors. There are many species of flies in California with some being more problematic than others. In UC IPM's publication Pest Notes: Flies, the authors provide information about identification, habitat, damage, and management of several common flies including house flies and face flies.

You may be surprised to learn that some flies are actually beneficial insects. Many flies in the...

Sooty mold is a black fungal growth that looks like a layer of soot covering the leaves of a plant or a sidewalk. The aptly named disease is common in gardens and landscapes, appearing wherever a large infestation of plant-sucking insects are found. Sooty mold grows on honeydew, a sticky substance excreted by plant-sucking insects.

While sooty mold doesn't actually damage plants or other surfaces, a thick growth of the fungus can block light to plant leaves, reducing photosynthesis. This can lead to stunted growth and premature leaf drop.

The key to reducing sooty mold is management of honeydew-producing insects,...

Pokeweed can outcompete native or landscape plants, contaminate agricultural produce, and reduce forage for livestock. All parts of the plant, including the glossy purple-black berries, are poisonous to humans.

Pokeweed is spread by seed and often sprouts in areas where birds roost. The best way...

Most people are practicing social distancing due to the current pandemic, so contracting head lice might not be a top concern right now.

However, many families with young children have at least one encounter with head lice at some time or another. Finding effective ways to manage these pests can be difficult, but it is possible. And remember, anyone can get head lice.

In the newly updated Pest Notes: Head Lice, authors Victoria Leonard and Dawn Gouge bring their public health and pest management expertise to the topic of head lice management, providing easy, safe, and effective...