October is a perfect time to talk about spiders! People decorate for Halloween with scary images of spiders and webs. Many people fear spiders but what you may not know is that they are helpful in our homes and landscapes.

Spiders you might find wandering in your home or hanging out in your garden are beneficial predators, eating pest insects like flies, mosquitoes, and numerous other undesirable bugs in and around landscapes.

Whether you are curious as to what kind of spider you found or you are looking for ways to get rid of them, UC IPM has the information you need in the newly revised free publication, Pest Notes: Spiders. Author...

As the days get shorter and the temperatures begin to cool, now is the time to practice weed management for annual cool-season weeds. It's also not too early to consider management for weeds that emerge in springtime.

Using integrated pest management (IPM) methods can help reduce the presence of most weeds. In lawns, good practices such as proper watering, mowing, and fertilizing can help maintain healthy turfgrass. Likewise, in landscapes, hand-weeding, cultivation, and use of mulches can be effective in controlling weeds. More specific information about these and other IPM practices can be found in our Pest Notes publications on

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...