Hypothesis: I hypothesize that if we replace infected host trees (avocado) with uninfected host trees (apple trees), the number of trees infected with Fusarium dieback will decrease because apple trees do not provide enough water for beetles and fungus to live inside them.
Introduction:
An invasive beetle—The Polyphagous Shot Hole Borer (PSHB)—is the factor that causes a serious disease in trees called Fusarium Dieback (FD). PSHB is a native Southeast Asia adult female beetle that carries undescribed fungal symbiont called Fusarium euwallacea (Fusarium e.) [1]. These female beetles bore into a tree and create brood galleries inside the wood. [1] The galleries then become shelters for PSHB to lay eggs and to raise the larvae. [1] The fungus that they carry to the tree is the main source of food for them and developing larvae. [1] However, Fusarium e. does not merely bring damage to the tree by hurting the vascular tissue inside; it also prevents the importation of water and nutrients from the roots to the entire tree that leads to Fusarium Dieback and tree death [2]. When developing larvae grow into adult beetles, they have the ability to …show more content…
Each tree will be examined for dieback branch that causes by beetles and fungus. Furasium dieback will be recorded in four levels: Level 0 is when the tree shows no symptoms of branch dieback. If 1% to 25% of branch in the tree shows symptoms for branch dieback, the tree is considered to be in level 1. [2] Level 2 happens when 26% to 50% of branch in the tree shows the symptoms. [2] More than 50% of tree branches of the entire tree shows dieback symptoms will be considered as level 3. [2] An infected host tree (avocado) will show more than 50% dieback branches in the entire tree. Those that are considered to be uninfected host trees (apple) will have healthier branches and will not have more than 50% death
Introduction:
An invasive beetle—The Polyphagous Shot Hole Borer (PSHB)—is the factor that causes a serious disease in trees called Fusarium Dieback (FD). PSHB is a native Southeast Asia adult female beetle that carries undescribed fungal symbiont called Fusarium euwallacea (Fusarium e.) [1]. These female beetles bore into a tree and create brood galleries inside the wood. [1] The galleries then become shelters for PSHB to lay eggs and to raise the larvae. [1] The fungus that they carry to the tree is the main source of food for them and developing larvae. [1] However, Fusarium e. does not merely bring damage to the tree by hurting the vascular tissue inside; it also prevents the importation of water and nutrients from the roots to the entire tree that leads to Fusarium Dieback and tree death [2]. When developing larvae grow into adult beetles, they have the ability to …show more content…
Each tree will be examined for dieback branch that causes by beetles and fungus. Furasium dieback will be recorded in four levels: Level 0 is when the tree shows no symptoms of branch dieback. If 1% to 25% of branch in the tree shows symptoms for branch dieback, the tree is considered to be in level 1. [2] Level 2 happens when 26% to 50% of branch in the tree shows the symptoms. [2] More than 50% of tree branches of the entire tree shows dieback symptoms will be considered as level 3. [2] An infected host tree (avocado) will show more than 50% dieback branches in the entire tree. Those that are considered to be uninfected host trees (apple) will have healthier branches and will not have more than 50% death