How do I treat spider webs on my lawn?

Web is not noticeable during the day but you can see it in the early evening so I assume the spiders come out after the sun goes down.Lawn turns paler green before dying.

yates

09 October 2014 09:13 PM

Hi Maureen,

There is a mite called the couchgrass mite which is active during the spring/summer months. You could try using a wettable sulfur to control this pest.
Here are some details on this pest from Syngenta that may assist

Identification
The immature Couchgrass Mite is a translucent bodied mite which is invisible to the naked eye at only 0.1-0.15 mm in length. As they mature the adult stage is slightly larger with a creamy white elongated abdomen up to 0.2 mm long. Infestations of mites are typically identified by the characteristic symptoms of plant injury in the field. Once visible injury has occurred, pest pressure must be considered to be extensive. Infected turf first exhibits a slight yellowing of leaf tips followed by shortening of internodes and leaves, producing a rosetted or tufted growth known as �witches broom�. Severe infestations result in stand loss, and large dead areas soon become infested with weeds. Damage is usually most severe during hot, dry conditions.
Life Cycle
Couchgrass Mite has a very short lifecycle (10-14 days) and multiple generations per season. Couchgrass Mite is physically difficult to get to as it lives in tight spaces between leaf sheaths. Development from egg to adult requires 5-10 days. After eggs hatch, they pass through 2 nymphal instar stages and molt to adults. All life stages live together, protected under the leaf sheath, and often 100-200 mites and eggs can be observed under a single leaf blade. Mites are spread on grass clippings and have been observed hitch-hiking on other turf insects. Dispersal in wind is also common.
Symptoms
Infestations are easily recognisable through the observation of plant injury in the field. Once visible injury has occurred, pest pressure must be considered to be extensive.
Infected grass first exhibits a slight yellowing of leaf tips followed by shortening of internodes and leaves, producing a rosetted or tufted growth.
Severe infestations result in stand loss, and large dead areas soon become infested with weeds.
Considerations
Damage is usually most severe during hot, dry conditions.
Avoid excessive nitrogen applications.
Use multiple chemistries to ensure consistent control and minimise resistance development
Ensure spray application windows cover multiple lifecycles
Specific recommendations to ensure proper application placement in between leaf sheaths
Remove damaged plant material and clippings to allow real turf quality improvements
Mow closely to remove affected plant parts.

Topics: Lawns Issues: Pests