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Image 596 of Annual report. 1921

Part of Kentucky Agricultural Experiment Station

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·l I. fl . 9 The Strawberry Cr0wn—b0rer 33 j , 3. Five-finger (P. recta). Erect. Flowers showy, yellow. 4. Five-Hnger (P. canadensis). Inclined to trail at times. Blossoms yellow. 5. Avens (Geum Vemum). Petals yellow. _ 6. Avens (Geum canadensis). Petals very small, white. l 7. Agrimony (Agrimonia mollis). Flowers in a_spike—like ( cluster. ` xi 8. Agrimony (A. parviilora). Flowers obscure, in spike- ` 3 like clusters. l A These plants will bear investigation as possible sources of A infestation of new plantings of strawberries, but inspection of ¤ the plantings about Bowling Green made by the author in . October, indicates that in the great majority of eases at the l present time, infestation has come either from old, infested , beds adjoining new plantings, in which case it is easy to ob- serve the gradual spread of the pest across the new pla11tings, or else the beds have been started from infested beds, in which Q case plants containing the grubs may be found scattered over i the new beds during the first season. i SUGGESTIONS FOR TREATMENT. ` Some details relative to the time at which beetles leave the plants in the fall and return to them again in the spring for ; egg-laying have yet to be determined, but the life-liistory as ` roughly outlined above can be depended on as a guide in prac- tis. Practis based upon this knowledge has been employed with I good effect for many years in ordinary Kentucky nurseries in 4 suppressing the pest in plantings of strawberries l`l'()lll whieh plants were to be sold. 1 Based upon this experienee_ the following suggestions are , made to growers of strawberries: Q l. Start new beds as far as praetieable l`ron1 infested beds—one hundred and fifty yards, or more it` this is feasible. 1 2. ln starting new beds use only young plants l`orme