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Lab
4: Agents of leaf discoloration and distortion
Picture Sheet 3 of 4 |
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| Click on the pictures for larger view. | Click on the pictures for larger view. | ||
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While there are many spider mites on landscape plants in Indiana, they can be divided into two groups based upon the time of year that they are active. Cool Season Mites Warm Season Mites |
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See the webs and amer colored eggs of this spruce spider mite. |
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Two spotted spider mite (warm season) Note the white stippling on this burning bush. This mite is most active in warm dry months from June-August |
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Spider web. This heavy webbing is caused by a spider. It is NOT a pest. |
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Spruce spider mite. (cool season) Note the browning on the interior of this spruce. This mite is most active in cool months (May-June, and late August- October). |
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4-line plant bug on forsythia Note the circular spots of brown dead tissue caused by the sucking of the 4-lined plant bug. This pest commonly attacks many herbaceous perennials |
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