How to Spot and Treat Garden Pests

McCain: Ophiosphaerella korrae: bermudagrass, Seashore paspalum, zoysiagrass: circular locations of dead turf 612 inches in size appear in spring when development resumes; areas might coalesce to form big areas; normally affects turfgrass more than 2 years old: affects inactive plants; most serious when soil temperature levels are < 65F; endures as sclerotia and in contaminated roots and stolons: remove dead yard; fertilize in summertime to maintain vigor; do not overfertilize in late summer; water proper length of time: fungicides available however mainly prevented by cultural practices in California Summer spot in turfgrass, triggered by Magnaporthe poae.

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Nelson: Magnaporthe poae: bluegrasses, fine fescues: circular, yellow or tan locations of dead and dying plants approximately 1 foot in size; can have green, obviously healthy plants in center; roots, crowns, and stolons have dark brown fungal hyphae on them; vascular discoloration and cortical rot take place in later stages: high temperatures (> 85) in late spring through the summer season; most extreme when grass is mowed low or when soil moisture is extreme: aerate soil and use slow-release nitrogen; improve drain; reduce compaction; water suitable length of time; do not cut too low; control thatch; lower soil pH if greater than 7: systemic fungicides in fall typically required when illness has been severe For presently registered fungicides, see Insect Management Standards: Turfgrass.

There is no one ideal turfgrass appropriate for all lawns. The kind of yard you pick for your lawn must work with your climate, expected use and upkeep level, and aesthetic desires; it likewise should have some resistance to typical illness. Cool-season lawns (e.g., bluegrasses, fescues, ryegrasses, and so on) carry out best at daytime temperatures between 70 to 85F.

Augustinegrass, and zoysiagrass) perform best in between 80 to 95F. Frequently, illness most impact lawns when they aren't vigorously growing. Cool-season turf is more susceptible to illness problems throughout the summer season, while warm-season grasses are more susceptible to diseases in late fall through early spring. Make every effort to pick a turf that grows well in your conditions.

Some species are more heat- or drought-tolerant than others. New and improved cultivars of lawn grasses using greater disease resistance, color, texture, density, and uniformity have actually been developed the previous numerous years. Contact a credible nursery or the UC Cooperative Extension office in your county for particular recommendations. Also see the publication Turfgrass Selection for the Home Landscape listed in Recommendations.

Identifying Lawn Larvae in Your Lawn Now

Much of California has a Mediterranean environment characterized by rainfall in winter season and spring and really little rain throughout summertime and fall. Throughout the state, lawns require irrigation.

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Using too much or not adequate water can result in unhealthy, slow-growing lawn that is vulnerable to pathogens. Waterlogged soils are badly aerated, which restricts root growth, promotes some diseases, and allows algae and moss to grow. In basic, a deeply watered lawn develops a deeper and more substantial vertical root system, which provides it with higher dry spell and disease resistance than a shallowly watered lawn.

Warm-season turfgrasses are more drought-resistant than cool-season yards and require about 20% less water. It is best to water the lawn thoroughly at longer intervals, until runoff just starts, rather than watering a little every day.

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Methods for Detecting Frequent Lawn Problems

If a lawn requires 40 minutes of irrigation each week but overflow begins after 20 minutes, water twice a week for 20 minutes. In cases where soil uses up water so gradually that runoff happens before 10 minutes, water cycling is necessary. To cycle, irrigate till runoff just begins, turn the system off, and repeat the process in thirty minutes before the soil surface area dries.

To determine sprinkler output, conduct "catch can tests" by setting little, empty, straight-sided, equal-sized containers such as tuna or cat food cans on top of your lawn every 10 to 15 feet in between sprinkler heads run by the same valve (Fig. 2) and run the system for 15 minutes. After 15 minutes, switch off the system and measure the quantity of water in each can with a ruler to figure out the typical quantity of water per can.