The least survivorship was recorded in 5th instars
when fed with 2, 5,10 and 15% neem solution, the survivorship on these solution was recorded as (36.67), (28.33), (24.17) and (15.83) percent, respectively, as compared to untreated leaves (47.50%).
avenae (Sa) in all larval instars
of the predator; R.
The temperature also affected the duration of all nymphal instars
The total post-birth developmental time (duration from birth to the beginning of the adult stage), number of instars
, and intermolt period at each instar
were initially determined using 36 specimens.
On 11 July, three nymphs (one 4th instar
and two 5th instars
) of the snakeweed grasshopper, Hesperotettix viridis viridis, were collected for comparison with A.
All in all, the 4 compounds tested showed variable degrees of efficacy and residual toxicity against both 2nd and 4th instars
larvae of S.
Thus, the aim of this work was to assess the number of juvenile instars
and duration of nymphal development of C.
myrodora larval and pupal stages duration which were fed with three Mikania species, but no instar
duration or larval morphology were taken into account.
Despite its great importance, the immature larval instars
of many families of this order are little known and even more complicated on those groups of which taxonomy is unstable in adult stage.
Heavily sclerotized areas of all first instars
collected from the Georgia habitat were light yellowish-tan, providing an obvious contrast with the glossy black sclerotized areas of the Cuban larva studied by Alarie et al.
In general, best varieties for 4th and 5th instars
was local variety which cultivated in this area, therefore it is suggested that local and Kokosa varieties integrated usage for silkworm rearing during first third instars
and 4th and 5th instars