Bean Beetle Lab Report Essay

This lab was testing different methods to prevent bean beetles form infesting a chickpea harvest. They wanted to find something that would protect the crop from this invasive creature. To do this they created 3 replicate experiments which contained 25g of seeds each group with a different genotype, and 5 newly hatched adult C. maculatus were added to the jar. They continued to check this on a weekly basis, at the end of the experiment they found that the results where quite different for each jar, and that all of them were not immune to the bean beetle.

The people in charge of this lab report where studying the Callosobruchus maculatus the bean beetle. They wanted to see different aspects that Neem extract/powder had an affected on the bean beetle. The authors wanted to answer questions they felt where not address by the majority of the scientific community. Such as how their behavior patterns are affected by Neem powder, or if the bean has been treated with neem if the eggs are affected in any way. The information found was useful from a learning perspective however there was no measurable effect to the bean beetle.
In this lab their goals where to find amount of wild lima beans that differ in cyanogenic glycosides rates.
As well as figuring out the bruchid beetles performance with different kinds of beans. Lastly they wanted to find of it the CNG within the population had an affect with bruchid performance. To do this they took seeds to study from Mexico and extracted CNG out of dry beans to find the information they wanted to discover. The end results showed that there was a higher concentration of Inamaria and a lower concentration of lotaustralin. The results gathered where expected to an extent because of studies done in the
past.

In this lab they predicted that after putting female and male of both the Callosobruchus maculatus and the Callosobruchus chinensis species they would find that more C. maculatus adults would come from normal beans unlike the C. chinensis which they expected to come from split beans. The procedure that the where put through was a 6 treatment procedure. They were put together by male and female in the same environment at different times. Based on the results they gathered they found three main factors that impacted the amount of eggs dramatically. These were the bean type given and the interaction between the species as well as the interaction within the species.

The Lab executed in this lab report’s purpose was to find more distinctions between 2 species. The 2 sibling species studied where Obtectus, and Obvelatus. These 2 species are considered sibling species because they resemble each other greatly but are not compatible. The point of this lab was to better understand what makes them sibling species. They did this through testing the effect that altitude, temperature, and climate would have on each of them, as well as being in a controlled environment of in a wild setting. In the end the results that were gathered showed us that while they did have large similarities, they are both fundamentally different.