Afterward, all hatchlings from each ootheca were counted and weighed to the nearest mg using an electronic balance.
Although we did not record the proximity of any ootheca to any other when doing the searches in 2005, we did not see such obvious clustering of egg cases as Eisenberg and Hurd (1990) report; only in blackberry thickets were egg cases occasionally clumped in such proximity.
The presence of conidia on the surface of ootheca
was observed 1h after immersion in the fungal suspension (Figure 1A).
The number of ootheca
(egg pod) deposited per female and the number of eggs per ootheca
were also counted.
The number of eggs per ootheca
decreased by almost threefold in ootheca
from DFB-treated females, 26 [+ or -] 6 eggs per female, compared to controls, 80 [+ or -] 2 eggs per female (significant p = 0.
The foam home--called an ootheca
(oo-THEE-kuh)--dries and hardens.
rotation, two states: ootheca
held dorsal (0), ootheca
rotated 90 [degrees] (1).
Adult females were discarded after their ootheca
hatched and second and third instars were held until use in a trial.
These were weighed to determine expected numbers of emerging nymphs from each ootheca
according to a regression provided by Eisenberg and Hurd (1977).
While translocation of ootheca
to northern sites may create new populations within the developing potential tolerance range, population movement S is more problematic.