Plants defoliants

Foliar disease scored on scale of 0 - 5, where 0 = no disease and 5 = plant defoliated due to foliar disease. 5Average values followed by the same letter were not significantly different at the 0.05 level using a Least Significant Difference. 

Plant defoliated branches hear cocoonlike hags. Cause Bagworms. See Plant defoliated branches bear cocoonlike bags on page 236. 

Pbnt defoliated. Cause Gypsy moths. See Plant defoliated on page 236 for control saagestions. 

Several other caterpillars, including gypsy moths, loopers, and tent caterpillars, feed on beeches. See Leaves skeletonized or with laige holes branches may be webbed and Plant defoliated on page 236 for more information and controls. 

Leaves skeletonized or with large holes branches may be webbed. Cause Caterpillars. ebworms can be a serious problem on honey ocust. Some cultivars, such as Moraine , show >3me resistance to webworm damage. For other control information, see Leaves skeletonized with large holes branches may be webbed". n page 236. Gypsy moths also feed on leaves, - ut they don t form webs. See Plant defoliated" on page 236 for controls. 

Plant defoliated branches bear cocoonlike bags. 

Plant defoliated. Cause Honeysuckle sawflies. The 1", gray-and-yellow caterpillarlike larvae feed ravenously on foliage. Handpick, or spray shoots with insecticidal soap use pyrethrin as a last resort. 

Plant defoliated. Causes Gypsy moths sawflies. See Plant defoliated or Leaves skeletonized on page 236 for controls. 

Plant defoliated. Cause Sawflies. Several species of sawflies cause similar damage in midsummer or early fall. For an illustration of the pests and their damage, see the opposite page. Natural parasites usually keep them in check. If necessary, handpick the white, green, or brown, caterpillar-like larvae. For severe infestations, spray the plant with insecticidal soap, or pyrethrin as a last resort. 

Plant defoliated. Cause Gypsy moths. The larvae of the gypsy moth are particularly fond of oaks and can easily defoliate a tree. See page 194 for an illustration of the pest and the damage it causes. For control measures, see Plant defoliated on page 236. 

Plant defoliated. Cause Gypsy moths. Gypsy moth larvae are up to 2 /i" long, gray-brown, hairy caterpillars with red and blue spots on their backs. Unlike tent caterpillars and webworms, gypsy moth larvae do not make webs. 

Plant defoliated. Causes Hemlock loop-ers gypsy moths. The 1 long, greenish yellow, black-spotted hemlock loopers usually appear in June. They feed on the needles, starting from the branch tips and working toward the center of the plant. Handpick small populations control large infestations with BTK. 

Gypsy moths cause similar damage for a description and control measures, see Plant defoliated on page 236. 

Army worms (Spodoptera spp.) can cause damage in kava nurseries and sometimes in the fields where they feed directly on the foliage. The pest can cause complete plant defoliation. 

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