Evaluation of Arzama densa as an Aid in the Control of Water Hyacinth in Louisiana12
1969; Oxford University Press; Volume: 62; Issue: 1 Linguagem: Inglês
10.1093/jee/62.1.142
ISSN1938-291X
Autores Tópico(s)Biological Control of Invasive Species
ResumoWater hyacinth, Eichornia crassipes Solms, is an introduced weed which grows in canals, bayous, and ponds in Louisiana. Most control efforts have been with herbicides. Larvae of the noctuid Anama densa walker were found to feed on water hyacinth, causing some plants to die and preventing development of seed heads on others. Young larvae feed on the epidermis of leaves, stems, and crown. Older larvae bore into the crowns, stolons, and leaf petioles. Feeding on the inside the crown caused a loss of apical dominance and subsequent development of excessive numbers of lateral buds. There is a possibility that this insect can be used as an aid in reducing populations of this noxious weed where it is adversely affecting navigation and fish habitats.
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