| |
| Publication Type:
| Report |
|---|
| Author(s): | Johnson-Cicalese, Jennifer |
|---|
| Title: | Evaluation of buffalograss leaf pubescence and its effect on mealybug host selection |
|---|
| Source: | Turfgrass Research Report for 1994 [Nebraska]. 1994, p. 33. |
|---|
| Publishing Information: | [Lincoln, NE]: University of Nebraska |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Bouteloua dactyloides; Susceptibility; Microscopy; Insect resistance; Pseudococcus; Leaf pubescence; Spanogonicus albofasciatus; Insect infestation; Trials
|
|---|
| Geographic Terms: | Nebraska |
|---|
| Abstract/Contents: | "Scanniong electron microscopy (SEM) and light microscopy were used to evaluate buffalograss leaf pubescence and its possible effect on susceptibility to mealybugs. A range of trichome densities was found, with two highly susceptible selections, 85-97 and '378' averaging as many as 8.7 and 10.9 trichomes per mm², while two highly resistant selections, '609' and 'Prairie' had 0 and 0.1 trichomes per mm². Pubescence ratings of the whole plant (1-6 rating scale) were highly correlated with trichome counts, indicating the relative accuracy of the more time-efficient pubescence rating technique. SEM observations of mealybugs on buffalograss leaves suggest that pubescence may facilitate oviposition by providing a framework for the waxy filamentous ovisac, and/or provide a foothold for mealybug nymphs. In preliminary choice trials, mealybugs did not exhibit a preference for the susceptible 85-97. Eviedence suggests that mealybug resistance mechanisms may operate primarily on a whole plant basis or may involve interactions with parasitoid wasps." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Johnson-Cicalese, J. 1994. Evaluation of buffalograss leaf pubescence and its effect on mealybug host selection. Turfgrass Res. Rep. Nebr. p. 33. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=37478 |
| If there are problems with this record, send us feedback about record 37478. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: b5347013a |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
