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| Centre for Biological Information Technology. | Sweetpotato DiagNotes is intended to help extension workers, students, farmers and others to identify problems in sweetpotato crops, and to easily access information on the crop and its problems. | http:/ / www.lucidcentral.org/ keys/ sweetpotato/ key/ Sweetpotato%20Diagnotes/ media/ html/ FrontPage/ FrontPage.htm |
| Bessin, R. | Tomato IPM guidelines. | http:/ / www.uky.edu/ Agriculture/ Entomology/ entfacts/ veg/ ef313.htm |
| UC IPM Online. | Tomato leafminer. | http:/ / www.ipm.ucdavis.edu/ PMG/ r783300911.html |
| Purdue University. | Tomatoes. | http:/ / www.hort.purdue.edu/ rhodcv/ hort410/ tomat/ tomat.htm |
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