The quelea bird is famous for its crop damage inflicted on small-grain crops. This bird leads to substantial economic losses in Kenya, Uganda, Senegal, Zimbabwe, Tanzania, Zambia, Ethiopia, Zimbabwe and other African countries every year. Pestman bird repellent can repel mostly harmful birds on damaging various crops. According to experiment on sorghum, rice, millet, and wheat, Pestman bird repellent is an excellent bird repellent product against queleas in the crop fields in Africa. An agricultural group in Senegal tested a comparison between Pestman bird repellent and another bird repellent on quelea birds.
Test Group 1: Pesman Bird Repellent (Code : PBR)
( based on Methyl Anthranilate)
at 1 L/hectare
It is a viscous white liquid, and easily dissolved in water. It has strong odor.
Test Group 2:Bird Repellent of Other Brand
(Code : AA30)
It is a viscous brown liquid, and easily dissoved in water. It has neem oil smell.
The testing methods :
1) Direct spraying in the rice fields ;
2) With Powered Knapsack Sprayer, the volume is 24 to 30 ltrs for ¼ ha or 8 sprayers/ha. (Noted : the sprayer tank volume is 15 ltrs)
3) With Powered Knapsack Sprayer, the volume is 60 ltrs for ¼ ha or 16 sprayers/ha. (Noted : the sprayer tank volume is 15 ltrs)
4) Start the treatments at the rice grain filling stage.
5) Frequency of treatments: Every 15-20 days.
6) Safety interval: 7 days before harvest.
7) Suggest 2 treatments per rice season.
In the early days of Pestman Bird Repellent (PBR) application, the crop growth showed a positive trend.
- Some effects were observed in the areas treated by Pestman Bird Repellent (PBR).
- In the areas with very high Quelea quelea infestation area, the rice field treated with low dose of 750ml PRB/ha had been obviously damaged by the birds, and lots of rice ears had been eaten by the birds.
- In the areas with very high Quelea quelea infestation area, the recommended dose is 1 ltr PBR/ha and 1.5 ltrs PBR/ha. The bird damage was very few in the treatedfields, and the rice ears are very full.
Does another Bird Repellent (Code : AA30) work or not ?
- Unlike the areas treated by Pestman Bird Repellent (Code : PBR), the birds were not driven away in the fields treated by bird repellent (Code : AA30), so this bird repellent was completely ineffective on Quelea quelea in the rice fields.
- The damage in the rice fileds treated by bird repellent (Code : AA30) are obviously, but the damage is lower than untreated fields by bird repellent.
- With high Quelea quelea infestation area treated by bird repellent (Code : AA30), the rice are obviously damaged by Quelea quelea, but in very few cases the birds will damage the whole rice ears.
Conclusion: After calculating the rice yields, we found that Pestman bird repellent is really effective on repelling Quelea quelea in rice fields, while bird repellent (Code : AA30) is not. Pestman Bird Repellent (Code: PBR) is an excellent bird repellent product against Quelea quelea in the rice fields.