bean weevil control

Control was ineffective in beans containing later weevil instars at time of harvest. 0000007039 00000 n They are a vital crop for food security in many parts of the world. This research was funded by USAID through the Legume Innovation Lab at Michigan State University. 0000006064 00000 n Weevil Control on Vegetables. 0000008558 00000 n 0000006173 00000 n H�|T]o�@|�W��]����-U������>�Q�4TP ���{{6��*!�����Y�(QR�ܰ�yt�g�P 0000009827 00000 n m�rq9ZɜWc�KÙ�^���iVߍR�X=��fڑ"�rR�k�8��GQȔ/Dbe����Ȥ嗴VMg�0&�D�(t�-�K-b+D�ዋz6A-��e��e/Ɠ'S�,)BA�A�fRRŖ%��u̠��Ws6��g {>�zԔP�T�du���F����+�4;�k�ӣ3H_UP��l:���+���c�"4���`�2/�R�y98�}N� �x�uŧ����d��1���zV�Y%�l�)���p���@�U��6����C��. 0000024874 00000 n 0000003882 00000 n By continuing you agree to the use of cookies. “Ultimately, we hope our findings contribute to food security needs in countries where the common bean is a valuable staple food,” he says. In some areas, farmers currently treat bean seeds with ash from cooking fires to control weevils. Suffocating weevils by triple bagging beans in storage is another option, but effective bags may not always be available. Symptoms . 42 0 obj << /Linearized 1 /O 44 /H [ 1715 523 ] /L 239696 /E 171156 /N 8 /T 238738 >> endobj xref 42 64 0000000016 00000 n 0000024625 00000 n The following are some of the most common indications that pea weevils are present: The seed of the host plant will show most of the damage. 0000002216 00000 n “Developing varieties of beans that are resistant to the bean weevil is a long-term solution to a very serious problem,” says Kelvin Kamfwa, bean breeder at the University of Zambia. 0000008803 00000 n 0000002445 00000 n We use cookies to help provide and enhance our service and tailor content and ads. Due to COVID-19, our staff is working remotely. 0000014569 00000 n 0000078982 00000 n 0000006113 00000 n 0000005902 00000 n To learn more about the genetics of weevil resistance in the common bean, Kamfwa and his colleagues used bean plants derived from an initial mating between a weevil-resistant and a weevil-susceptible variety of common bean. Weevil larvae bore into seed pods and enter seeds. @ełG�v&�^ǯ�9�����.����y�Ԩ���7���f;�%$���Yٹ��#P0B/��nCU!�f������N���\z��T���m3�6n��*z]�����G��L߰��Lи �n\Ϻ��Փ�O%�yϚ������q�����q4��`������s�-��̦PaFA3��@��ٿH� �XD�A�a���Q����jw3�2a�e�E�/�Y�����1�0��=z �43C�� � 0000012900 00000 n endstream endobj 51 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 32 /FontBBox [ -628 -376 2000 1010 ] /FontName /FHMBCI+Arial-BoldMT /ItalicAngle 0 /StemV 133 /FontFile2 89 0 R >> endobj 52 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 122 /Widths [ 278 0 0 0 0 0 0 0 0 0 0 0 278 0 278 0 0 0 0 0 0 0 0 0 0 0 333 0 0 0 0 0 0 722 722 722 722 667 611 778 722 278 0 722 611 833 722 778 667 0 722 667 611 722 667 944 0 667 611 0 0 0 0 0 0 556 611 556 611 556 333 611 611 278 0 0 278 889 611 611 611 0 389 556 333 0 556 778 0 0 500 ] /Encoding /WinAnsiEncoding /BaseFont /FHMBCI+Arial-BoldMT /FontDescriptor 51 0 R >> endobj 53 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 252 /Widths [ 250 0 0 0 0 833 0 180 333 333 500 564 250 333 250 278 500 500 500 500 500 500 500 500 500 500 278 278 0 564 0 0 921 722 667 667 722 611 556 722 0 333 389 722 611 889 722 722 556 0 667 556 611 722 722 944 722 0 611 333 0 333 0 0 0 444 500 444 500 444 333 500 500 278 278 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 0 0 0 0 0 0 0 0 0 444 0 0 0 0 0 0 0 0 0 0 0 0 0 333 0 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 549 0 0 0 0 0 0 0 0 310 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 722 0 0 0 0 0 0 0 0 0 0 0 444 0 0 0 0 0 0 0 0 0 0 0 278 0 0 0 0 0 0 0 0 0 0 0 0 0 500 ] /Encoding /WinAnsiEncoding /BaseFont /FHMBDK+TimesNewRomanPSMT /FontDescriptor 54 0 R >> endobj 54 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 0 /Descent -216 /Flags 34 /FontBBox [ -568 -307 2000 1007 ] /FontName /FHMBDK+TimesNewRomanPSMT /ItalicAngle 0 /StemV 0 /FontFile2 99 0 R >> endobj 55 0 obj << /Type /Font /Subtype /Type0 /BaseFont /FHMBGK+ArialNarrow-Bold /Encoding /Identity-H /DescendantFonts [ 101 0 R ] /ToUnicode 50 0 R >> endobj 56 0 obj [ /Indexed 57 0 R 123 93 0 R ] endobj 57 0 obj [ /ICCBased 98 0 R ] endobj 58 0 obj 788 endobj 59 0 obj << /Filter /FlateDecode /Length 58 0 R >> stream 0000004411 00000 n Control was ineffective in beans containing later weevil instars at time of harvest. Kamfwa is the lead author of a new study that has narrowed down the genetic locations of several weevil resistance genes in the common bean. Weevil infestations can spread rapidly and lead to significant losses of bean crops. One of these regions was known previously, but two regions were new discoveries. Researchers hope to change that. 0000089652 00000 n “They will be able to save seeds for home use or for the next planting season,” says Kamfwa. When weevil larvae were present as early instars, parasitoids reduced weevil populations by 88–97%. 0000003081 00000 n ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V.

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