0
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Alternatives to chemical insecticides.

Pomegranate    India

Sir,

One pomegranate tree in my farm suffers from flies issue. In one youtube video it was suggested that carboryl (2 - 4 gm per litre) or monocrotophos (1 mg per litre) may be used to control these pests.

I however intend to use an organic substitute in place of these chemical insecticides. I will be therefore grateful if you can suggest alternative bio pesticide and the quantity to be used.


Posted by: Abhishek (1 point) Abhishek
Posted: May 20, 2018




Answers

1
point
Can you see the flies? Please upload a picture? Are they Tephritid fruit flies?

One way is the capture of the males using the male annihilation technique (MAT). See below
You can also encourage predatory ants like weaver ants. But first you need to confirm the identity of the fly



https://www.researchgate.net/publicat...

By continuous trapping of fruit flies (Bactrocera spp. males) in 20-25 year old mango orchard (cv. Dashehari) during 2006-08 by using parapheromone- insecticide lure (0.1% methyl eugenol + 0.05% malathion) traps @ 10 traps/ha, also known as male annihilation technique (MAT), fruit fly catches declined significantly (>80%) in 2007 as compared with 2006. The fruit fly catches remained at a lower rate without any significant differences in average weekly catches during 2007 and 2008. Among the trapped species, Bactrocera dorsalis Hendel was the predominant with highest seasonal catch in July. The other species, B. zonata (Saunders) attained its peak activity in May and its population was almost half that of B. dorsalis. In 2008, population of fruit flies in orchard where long term mass trapping of males was carried out was 83.4% lower than in the orchard where traps were not installed. In other field trial, four modules in combination with MAT were tested and all tested modules significantly lowered fruit fly infestation as compared with the control-orchard. Maximum protection (94.5%) was recorded with a module involving MAT+ sanitation+ soil drenching with 0.1% chorpyriphos+ bait cover spray (0.05% malathion + 0.2% Protinex). It was followed by the one with MAT +sanitation+ soil drenching (87.3% protection), MAT+ sanitation+ cover spray (81.8% protection), and MAT+ sanitation (65.5% protection).

Population suppression of fruit flies... (PDF Download Available). Available from: https://www.researchgate.net/publicat... [accessed May 20 2018].



Posted by: David Hughes (43 points) David Hughes
Posted: May 20, 2018




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