The trend of the population of frui

The trend of the population of fruit flies follows the dynamic of the rains.
This is more perceptible in Bactrocera invadens (Drew) than in Ceratitis cosyra (Walker).
From 350 individuals captured per trap, B. invadens seemed to disrupt the presence of
C. cosyra and the other related fruit fly species. Such behavior is probably due to an
interspecific competition and could be the fact that C. cosyra dominated emergences
from the incubated fruits of alternate host plants up to 87 % even though B. invadens
was observed.
Integrated pest management (IPM) package was tested which included:
(1) male annihilation using wood blocks soaked in insecticide (malathion 50 EC) and
lure (methyl eugenol and terpinyl acetate),(2) protein hydrolysate bait applications
(Success Appat at 1 liter per ha) and (3) sanitation (weeding and destroying of the
collected fallen fruits by the following practices: using black plastic bags, burying in
holes, burning on the ground surface and incinerating with a barrel transformed into
incinerator).
Aim was to control fruit flies in mango orchards. Results showed a control as an inferred
improvement in fruit fly infestations in the treated plot up to 83% compared to the
untreated. From all above particular method implemented to destroy collected fruits, a
reinforced black plastic bag would be recommended for popular use.
When we compare methyl eugenol to the home-made baits of grinded or ground nutmeg
and NET, a beauty cream, we found that methyl eugenol attracted significantly
B. invadens. Methyl eugenol’s half life is also significantly longer (5 weeks) than the
grinded nutmeg (less than 1 week) (P = 0.0109; t = 9.4935; df = 2). No capture was recorded
in the NET based trap. In case of lack of methyl eugenol, the grinded nutmeg might be
recommended as an alternative product to renew every week