Glandular Trichomes on Alfalfa Impede Searching Behavior of the Potato Leafhopper Parasitoid

2000 ◽  
Vol 18 (3) ◽  
pp. 187-192 ◽  
Author(s):  
Aaron Lovinger ◽  
David Liewehr ◽  
William O Lamp
Keyword(s):  
Glandular Trichomes ◽  
Potato Leafhopper ◽  
Searching Behavior

scholarly journals Comparing Host Plant Resistance, Engineered Resistance, and Insecticide Treatment for Control of Colorado Potato Beetle and Potato Leafhopper in Potatoes

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Gerald M. Ghidiu ◽  
David S. Douches ◽  
Kimberly J. Felcher ◽  
Joseph J. Coombs
Keyword(s):  
Host Plant ◽  
Plant Resistance ◽  
Colorado Potato Beetle ◽  
Host Plant Resistance ◽  
Glandular Trichomes ◽  
Potato Leafhopper ◽  
Management Options ◽  
Potato Leaf ◽  
Potato Beetle ◽  
Engineered Resistance

The Colorado potato beetle,Leptinotarsa decemlineata(Say) Order Coleoptera and the potato leafhopper,Empoasca fabae(Harris) Order Homoptera, are the major insect pests of potato in eastern North America. In two years of field trials, we compared the effectiveness of three pest management options for the control of Colorado potato beetle and potato leafhopper: natural host plant resistance (glandular trichomes), engineered resistance (Bacillus thuringiensis[Bt] Berlinercry3Agene) and a susceptible potato cultivar (Superior) with an at-planting application of the insecticide thiamethoxam. Similar and acceptable control of the Colorado potato beetle larvae was obtained with theBt-cry3Alines and the thiamethoxam treated “Superior” variety. The glandular trichome cultivar had significantly less Colorado potato beetle damage than did the untreated “Superior” in 2004, although damage was significantly greater than in theBt-cry3Alines and the insecticide-treated potatoes for both years, and was the only treatment that consistently had very little potato leafhopper damage. These data demonstrate that although each type of host plant resistance mechanism (Bt-cry3Aor glandular trichomes) was as effective as the chemical control against one of the insects, neither provides adequate resistance to both Colorado potato beetle and potato leaf hopper.

Bioactivity of Lipophilic Metabolites from Glandular Trichomes of Medicago sativa Against the Potato Leafhopper

2004 ◽  
Vol 30 (10) ◽  
pp. 1969-1983 ◽  
Author(s):  
Christopher M. Ranger ◽  
Rudolph E. K. Winter ◽  
George E. Rottinghaus ◽  
Elaine A. Backus ◽  
Mark R. Ellersieck ◽  
...  
Keyword(s):  
Medicago Sativa ◽  
Glandular Trichomes ◽  
Potato Leafhopper

An investigation into the ultrastructure and histochemistry of glandular trichomes of johnsongrass [Sorghum halepense (L.) Pers.] leaves

1992 ◽  
Vol 50 (1) ◽  
pp. 842-843 ◽  
Author(s):  
R. N. Paul ◽  
C. G. McWhorter ◽  
J.C. Ouzts
Keyword(s):  
Glandular Trichomes ◽  
Sorghum Halepense ◽  
Secretory Apparatus

Secretory trichomes have been described on johnsongrass leaves previously, but there is little knowledge of their ultrastructure or the nature of their secretion. Since johnsongrass is a pernicious weed, there is much interest in the nature of compounds found on its foliar surface, and the possible effect of these extrusions on herbicide efficiency. This report describes the results of an investigation into the ultrastructure of the secretory apparatus, and into the nature of the secretion.

Hop pellets type 90: ESEM studies of glandular trichomes morphological and structural changes during the different phases of hop processing

2011 ◽  
Vol 40 (2) ◽  
pp. 282-290 ◽  
Author(s):  
S. Srečec ◽  
V. Zechner-Krpan ◽  
S. Marag ◽  
G. Mršić ◽  
I. Špoljarić
Keyword(s):  
Structural Changes ◽  
Glandular Trichomes
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