Threshold Dynamics of a Huanglongbing Model with Logistic Growth in Periodic Environments

Table 2

Parameter functions for model (1) according to the values of Table 1.

Parameter functions	Value	Reference
𝛽1(𝑡)	0.0042925+0.003543cos(2𝜋𝑡/12)	Estimate
𝜇1(𝑡)	0.0034585+0.0007085cos(2𝜋𝑡/12)	[20]
𝑑(𝑡)	0.022221+0.005554cos(2𝜋𝑡/12)	[21]
𝐷(𝑡)	18.6547035+14.8714335cos(2𝜋𝑡/12)	[20, 22]
𝛽2(𝑡)	0.008779171+0.004838437cos(2𝜋𝑡/12)	Estimate
𝜇2(𝑡)	0.53375125+0.41676875cos(2𝜋𝑡/12)	[23]
𝑏(𝑡)=𝐷(𝑡)−𝜇2(𝑡)	18.120952+14.45466475cos(2𝜋𝑡/12)	[20, 22, 23]
𝑚	560	[24]