Host instars preference, density-dependent parasitism and behavioral perspective of parasitoids (Aphidius colemani, Aphidius matricariae and Aphelinus abdominalis) in Aphis glycines and Aphis gossypii

ABSTRACT Three parasitoid species Aphidius colemani, Aphidius matricariae (Hymenoptera: Braconidae) and Aphelinus abdominalis (Hymenoptera: Aphelinidae) were evaluated concerning their parasitism potential in two aphid species, Aphis glycines and Aphis gossypii (Hemiptera: Aphididae). The feeding of these two aphid species, even at low sums, can significantly damage photosynthesis and is found to transmit many kinds of plant viruses, which impact potential adverse effects on the plants. The overall parasitization on all nymphal ages in As. glycines was accomplished by Ad. colemani (60.50%), Ad. matricariae (49.16%) and Al. abdominalis (40%), while in As. gossypii parasitism exhibited by Ad. colemani (79.48%), Ad. matricariae (65.33%) and Al. abdominalis (58.83%). Aphelinus abdominalis exhibited the lowest parasitism in both given species as hosts. Significant differences in parasitism of different parasitoids and host species were observed. Concerning the preference of nymphal instars, we found that parasitoids species prefer to parasitize 1st- 4th instars in As. gossypii while in As. glycines 2nd, 1st, 3rd and 4th. Our results showed that the parasitism increases with the increase of parasitoid numbers and hosts densities.

Clinico-histopathological Assessment of Patients Undergoing Thyroidectomy

Objective: To determine the clinical presentation and histopathological evaluation of patientsundergoing thyroidectomies at tertiary care Hospital. Methodology: This cross-sectional study was done at department of general surgery of LUMHS/Jamshoro. Duration of the study was 1 year from October 2017 to September 2018. All the cases with a diagnosis of thyroid disorder and underwent thyroidectomy were selected and above 25 years of the age were included. All the surgeries were carried out by senior surgeons along with the cooperation of the ENT surgeons. After surgeries specimens of all the cases were sent to the diagnostic laboratory for the histological assessment. Data was collected via self-made proforma. Results: Of 58 patients majority i.e. 43.10%were found with age group of 35-44 years. Females found in the majority 63.80%. The swelling was noted among all of the cases, followed by pain, difficulty in swallowing, difficulty in breathing and others 8.62%, 10.34%, 20.68% and 25.68% respectively. Adenomatous goiter was the most common histopathological finding in 82.75% cases, papillary carcinoma was found 8.62%, follicular carcinoma was only in one case and anaplastic carcinoma was also in 1 case