Tobacco Budworm Resistance to Methomyl and Methyl Parathion in Northwestern Mexico

Jose L. Martinez-Carrillo


Organophosphate and carbamate insecticides were used extensively for tobacco budworm control before pyrethroids became available. Resistance to them as been documented in the past but not in recent years. Since these compounds are still used in cotton it is important to continue the monitoring of the resistance levels in each of the main cotton producing areas in Mexico. Data since 1984 on tobacco budworm populations from northwestern Mexico, have showed that high levels of resistance are present to methyl parathion and methomyl. Any resistance management strategy should consider the resistance mechanisms involved in resistance to these products in order to be successful and avoid or delay cross resistance problems.

Reprinted from Proceedings of the 1994 Beltwide Cotton Conferences pp. 816 - 817
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998