The field experiment was conducted to know the yield performance of cucumber var. Bhaktapur Local with the application of plant growth regulators (PGRs) in the farmers’ field of Lamjung, Nepal during September to November, 2013. Five treatments (Four PGRs; NAA @10 ppm, GA3 @ 50ppm, GA3 @100ppm, MH@ 60ppm and distilled water as control) were replicated six times under walk-in plastic tunnel. The experiment was laid out in randomized complete block design. The first 30 flowers of each plant were used for the observation. PGRs were sprayed in 2-4 true leaf stage of seedling, 20 days after first spray and 10 days after second spray. The research revealed that NAA @ 10 ppm had higher effect in sex expression, fruit set and yield than rest of the treatments. GA3 @ 100 ppm had significantly higher number of male flowers and more vine growth than other treatments. Branch per plant was obtained as the highest with MH @60 ppm followed by NAA @10 ppm. The marketable fruit yield was significant with NAA @10 ppm followed by MH@ 60 ppm, GA3 @50 ppm, GA3 @100 ppm than control. It is concluded that thermo-sensitive variety of cucumber Bhaktapur Local can be grown with the use of plant growth regulators particularly, NAA@ 10 ppm, under walk-in plastic tunnels during the autumn-winter season in the mid hills of Nepal. The research further indicated that cucumber can be a profitable and a potential agriculture enterprise for the area.

This research was conducted to evaluate the five selected commercial formulation of insecticides against newly introduced Fall armyworm spodoptera frugiperda in the farmer's field at Belaka Municipality of Udayapur district, Nepal. The experiment was laid out in Randomized completely blocked design (RCBD) from 23rd Feb 2021. The prepared field was divided into six treatments and four replications (Imidacloprid 70 % WDG@0.3ml/ltr water, Spinetoram 11.7% SC@0.3ml/ltr water, Chlorantraniliprol 18.5% W/W@0.4ml/ltr water, Emamectin Benzoate 5% WDG@0.4ml/ltr, Azadirachtin 0.03% EC @5ml/ltr and control). Total three spray of the insecticides were done at the interval of 7 days after the initial damage symptoms starts to appear. The field experiment showed that all the insecticides were significantly effective in reducing the number of live larvae per plant after 3rd spray whereas fast and foremost reduction in live larvae was seen in the plot sprayed with spinetoram and chlorantraniliprole. There was 89% reduction of live larvae after 1st spray in the plot sprayed with spinetoram and chlorantraniliprole followed by emamectin benzoate, 66%. Similarly, no damage symptoms were seen in the plot sprayed with spinetoram and chlorantraniliprole after 3rd spray. The highest grain yield per plot was also gained from chlorantraniliprole (8.8 ton/ha) and spinetoram (8.5 ton/ha).