Things Needed
Grubs are a frequent and often severe trouble in Pennsylvania lawns . In Pennsylvania , these grubs are most often the larva of Nipponese beetle or Northern cloaked chafer grubs . affect lawns become spongy in patches as their roots are gnawed away and layer of sod can be easily peeled away . The most visible signs of chuck impairment are patches of dead or dying grass that crop up in former summertime or downslope . The most extensive grub damage in Pennsylvania lawns takes place between May and June , which is also the upright time to treat a lawn for grubs .
Step 1
hold back watering your lawn in July and August . This is the time when the grub ’s eggs are laid in your lawn . If they are not hydrated , they may give way . However , be cognisant that when you turn back water your lawn , it will go dormant and turn brownish until you water it again . But if you treat the grubs this room , you may hop chemic lawn treatments on the whole .
Step 2
handle Nipponese lawn chuck , one of the most common Pennsylvania lawn eats , with bacterial milky disease . This product is readily usable at many garden centers and can be splash onto and watered into the grime harmonise to the producer ’s instructions . However , before you purchase this product , have a professional confirm that your lawn is indeed suffering from Japanese lawn grubs . Bacterial milky disease will not kill other metal money of grub . Bacterial whitish disease will take 3 to 5 long time to entirely kill your lawn ’s Japanese mallet population . However , it does allow you to avoid spraying your lawn with chemical substance .
Step 3
Introduce Heterorhabditis spp . , an worm parasitic nematode easily purchased online , to your lawn . Simply sprinkle them onto your lawn and then water it harmonise to the package ’s direction . Be aware that the enquiry resultant role touch on the effectiveness of parasitic roundworm on lawn grubs has not been reproducible , according to the agricultural expert at Pennsylvania State University . However , if the handling is successful , you may void chemically treating your lawn .
Step 4
Treat your lawn with a preventative insecticide prescribed for use on lawn grub . In Pennsylvania the best time to enforce weedkiller is between mid - June and mid - July when the Northern masked chafer and the Japanese beetle lie their eggs .
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