Weed Ecology and management Studies on interaction and managment of wild oats in spring wheat.

Genetic Engineering

If rela ives of he al ered crops are growi g ear he field, he ew ge e ca easily move via polle i o hose pla s. he ew rai s migh co fer o wild or weedy rela ives of crop pla s he abili y o hrive i u wa ed places, maki g hem weeds as defi ed above. For example, a ge e cha gi g he oil composi io of a crop migh move i o earby weedy rela ives i which he ew oil composi io would e able he seeds o survive he wi er. Overwi eri g migh allow he pla o become a weed or migh i e sify weedy proper ies i already possesses.Cha ge i Herbicide Use Pa er sCrops ge e ically e gi eered o be resis a o chemical herbicides are igh ly li ked o he use of par icular chemical pes icides. Adop io of hese crops could herefore lead o cha ges i he mix of chemical herbicides used across he cou ry. o he ex e ha chemical herbicides differ i heir e viro me al oxici y, hese cha gi g pa er s could resul i grea er levels of e viro me al harm overall. I addi io , widespread use of herbicide- olera crops could lead o he rapid evolu io of resis a ce o herbicides i weeds, ei her as a resul of i creased exposure o he herbicide or as a resul of he ra sfer of he herbicide rai o weedy rela ives of crops.