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… Updated: March 10, 2023 Grubs Grubs are the larvae of beetles such as Japanese beetle , green June beetle, May or June beetle, … heads. Most beetle grubs have legs. Scarab beetle grubs (Japanese, May, June, Oriental, etc.) have a distinctive …

… ( Syringa ), flowering quince ( Chaenomeles ), panicle Hydrangea (Hydrangea paniculata), Smokebush (Cotinus coggygria), and …

… holes in leaves and sometimes clip pods (Fig. 1a).   Japanese beetle is an introduced pest that aggregates in … Figure 1. a) Grasshopper, photo from Prairielands FS. b) Japanese beetle, photo from Prairielands FS. c) Bean leaf …

… in Maryland By Hayden Schug, AgFS Educator, University of Maryland Extension-Charles County and Dr. Galen Dively, … important to examine the whole plant, not just the upper leaves, when estimating damage. Thresholds for treatment … occur in clusters of 40 to 50 on the undersides of leaves. Each female may lay an egg mass every 2 or 3 days, …

… for the usual defoliators, including bean leaf beetle, Japanese beetle, and caterpillars. The treatment threshold is … plants. Field Corn At the start of silking, scout for Japanese beetles and stink bugs. For Japanese beetles, the treatment …

… pine bark 24Apr26 23Jul28 , 23Jun23 , 23Mar31 (and lady beetles) 21Oct29 , 21Jun04 , 21Apr23   20Apr24 , 20Apr03 … roses and spirea), 25Apr25 ( Periphyllus sp. on threadleaf Japanese maple), 25Apr18 24Oct18 (sugar maple), 24May17 … imported willow leaf 24May17 22Jul22   20May29 Beetle, Japanese 25Jul11 , 25Jun27 , 25Jun20 , 25Jun13 24Jul12 , …

… insect pests, particularly providing >75% control of flea beetles, Colorado potato beetle, cabbage worms and alfalfa … moths, several thrips species and Colorado potato beetles, so farmers should consider using other classes of … provided >75% control of green peach aphid, flea beetles, Japanese beetle, Mexican bean beetle, potato leafhopper and …

… Lightly prune damaged plants to encourage new growth.  Japanese beetles Japanese beetles can be a problem eating basil. Handpick …

… are good heat heat-tolerant greens for Maryland.   Flea beetles are a serious pest of eggplant and also feed on … oil can be used on heavy aphid infestations.    Japanese beetle  adults are active. Brush adults into a … water held underneath foliage or branches. The use of Japanese beetle traps near your plants is not recommended. …

… family that require similar growing conditions include Japanese andromeda ( Pieris japonica ), mountain laurel   … Eaten or Chewed Notches chewed in leaf margins Two-banded Japanese Weevil Leaves Eaten or Chewed Branches or entire … by parasitoids, and look for predators such as ladybird beetles.  To control heavy infestations, spray dormant plants …