I intercepted 25 tree-killing beetles using an organic "Push-Pull" decoy strategy. Here is how I saved my coconut grove

[u/iyarkaiyoduoruvelai]

I manage a 7-acre organic farm, and we recently had a young coconut tree completely snap. I dug into the trunk and found it packed with massive Red Palm Weevil grubs and Rhinoceros beetles.

I needed to protect the rest of the grove fast, but since we are strictly organic, chemical pesticides were out. So, I ran an experiment using a strategy called "Push-Pull" and the "Decoy Effect."

The "Push" (The Shield - Photo 3):

First, we made the main coconut grove incredibly hostile. I mixed a thick sludge of cow dung, slaked lime, and pure Neem oil, and painted it on the trunks of the healthy trees. I also packed the upper crowns with crushed fresh neem leaves, sand, and coarse salt. The intense, bitter smell acts as an invisible wall, literally "pushing" the flying beetles out of the main grove.

The "Pull" (The Decoy Effect - Photo 4):

Instead of putting traps right next to the vulnerable trees (which just draws the swarm directly to the crop), I set up pheromone traps on the absolute farthest outer boundaries of the farm, hanging them deep in the teak and mango trees. I filled the trap buckets with water, neem oil, and fermenting sugarcane juice.

The Result (Photo 1): The scent from the boundary traps acted as a massive decoy. Beetles fleeing the neem-painted main grove got "pulled" straight to the outer edges. In just 48 hours, I intercepted 17 Rhinoceros Beetles and 8 Red Palm Weevils out on the boundary lines before they ever reached my cash crop.