Shot from the Sky: The Gypsy Moths and the End of Something

2019 ◽  
pp. 214-228
Keyword(s):  
Gypsy Moths

Nosema portugal,N. SP., Isolated from Gypsy Moths (Lymantria disparL.) Collected in Portugal

1999 ◽  
Vol 73 (1) ◽  
pp. 1-14 ◽  
Author(s):  
J.V. Maddox ◽  
M.D. Baker ◽  
M.R. Jeffords ◽  
M. Kuras ◽  
A. Linde ◽  
...  
Keyword(s):  
Gypsy Moths

PRE-MATING SEXUAL ACTIVITY OF GYPSY MOTH MALES IN SMALL PLOT FIELD TESTS (LYMANTRIA (= PORTHETRIA) DISPAR (L.): LYMANTRIIDAE)

1976 ◽  
Vol 108 (4) ◽  
pp. 439-448 ◽  
Author(s):  
J. V. Richerson ◽  
E. A. Brown ◽  
E. Alan Cameron
Keyword(s):  
Gypsy Moth ◽  
Sexual Communication ◽  
Field Tests ◽  
Baited Traps ◽  
Gypsy Moths ◽  
Porthetria Dispar ◽  
Relative Attractiveness ◽  
Small Plot ◽  
Previous Mating ◽  
Cotton Wick

AbstractPre-mating behavior of male gypsy moths was investigated in 0.2 ha circular plots containing from 0 to 72 virgin females/plot in untreated areas and in areas treated with an aerial application of 20 g/ha microencapsulated disparlure. Male moths in both treated and untreated plots oriented initially to trees, not directly to females. Mating was disrupted in treated plots but males continued search behavior. No anemotactic behavior was evident in either treated plots or untreated plots with females. In untreated plots, male moths were not caught on sticky panels (panels suspended at 2, 4, and 6 m) higher than pheromone baited traps set at 2 m. In treated plots, equal number of males were caught at all panel heights and in baited traps at 2 m. Previous mating and pheromone exposure histories of males did not affect the response of these males to traps baited with 4–5 mg of disparlure in untreated plots. In a test of the relative attractiveness of a cotton wick and a new laminated bait dispenser in Johnson traps, traps baited with the laminated dispenser had a greater male moth catch/male contact to trap than the traps baited with the cotton wick. Not all males contacting the Johnson trap were caught. A mode of action for disparlure as a disruptive agent in the long range sexual communication system of gypsy moth is proposed.

Host Plants Used by Gypsy Moths Affect Survival and Development of the Parasitoid Cotesi melanoscela

1992 ◽  
Vol 21 (1) ◽  
pp. 173-177 ◽  
Author(s):  
John H. Werren ◽  
Michael J. Raupp ◽  
Clifford S. Sadoff ◽  
Thomas M. Odell
Keyword(s):  
Host Plants ◽  
Gypsy Moths ◽  
Survival And Development

Virus Transmission in Gypsy Moths is not a Simple Mass Action Process

Ecology ◽  
1996 ◽  
Vol 77 (1) ◽  
pp. 201-206 ◽  
Author(s):  
Vincent D'Amico ◽  
Joseph S. Elkinton ◽  
Greg Dwyer ◽  
John P. Burand ◽  
John P. Buonaccorsi
Keyword(s):  
Virus Transmission ◽  
Mass Action ◽  
Gypsy Moths ◽  
Simple Mass ◽  
Action Process

Sperm Transfer in Gypsy Moths: Effect of Constant or Cyclic Temperature and Constant Light or Darkness during the Pupal Stage

1997 ◽  
Vol 32 (3) ◽  
pp. 321-331 ◽  
Author(s):  
F. I. Proshold
Keyword(s):  
Light Intensity ◽  
Constant Temperature ◽  
Lymantria Dispar ◽  
Pupal Stage ◽  
Sperm Transfer ◽  
Constant Light ◽  
Constant Darkness ◽  
Gypsy Moths ◽  
Cyclic Temperature ◽  
Full Complement

Sperm transfer and fertility of the gypsy moth, Lymantria dispar (L.), held as pupae under constant temperature and 24-h light, 24-h darkness, or a photoperiod of 16:8 (L:D) h were compared with males held in cyclic temperature and 24-h light, 24-h darkness, or a photoperiod of 16:8 (L:D) h. Constant temperature and constant light or darkness severely reduced its ability to transfer sperm. Males held under constant light were more severely affected than males held in darkness, but sperm transfer was not correlated with light intensity (between 80 and 3960 lux). Nearly all males held under constant light and most held under constant darkness were sterile or partially sterile. In either case, sterility was caused by poor sperm transfer. Females with a full complement of sperm were fertile regardless of holding condition of male pupae. The sterilizing effect of constant light or darkness was overridden by cyclic temperature of 28°C for 16 h and 22°C for 8 h. At a photoperiod of 16:8 h, pupae held in constant 28°C transferred less sperm than those held at 25°C. Pupae held at constant 30°C were sterile, but those held at 30°C for 16 h and 25°C for 8 h transferred similar quantities of sperm as males held at constant 28°C.

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