Modelling the Control of the Impact of Fall Armyworm (<i>Spodoptera frugiperda</i>) Infestations on Maize Production

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">The initial number of the moths at <svg height="8.55521pt" id="M179" style="vertical-align:-0.2063904pt" version="1.1" viewbox="-0.0498162 -8.34882 25.736 8.55521" width="25.736pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M324 430H196L233 583L223 592L145 529L120 430H54L29 396L31 388H111L56 126C33 15 54 -12 77 -12C137 -12 214 57 250 95L233 119C208 92 155 59 138 59C126 59 120 70 131 125L186 390L298 394L324 430Z"></path></g><g transform="matrix(.013,0,0,-0.013,8.065,0)"><path d="M535 323V373H52V323H535ZM535 138V188H52V138H535Z"></path></g><g transform="matrix(.013,0,0,-0.013,19.328,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g></svg></td><td class="align_center"><span style="width: 53.9614ptpx;"><svg height="12.4698pt" id="M180" style="vertical-align:-3.18147pt" version="1.1" viewbox="-0.0498162 -9.28833 53.9614 12.4698" width="53.9614pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M475 445L452 468C423 436 401 426 385 426S352 427 305 436C268 443 216 448 185 448C156 448 128 425 102 382C89 360 77 338 64 304L89 291C117 340 143 380 190 380C214 380 268 376 295 373C320 370 344 371 362 374L70 101C32 65 23 36 23 18C23 5 27 -3 31 -8C36 -8 39 -6 42 -1C52 15 67 31 80 40S110 49 143 33C195 8 257 -20 290 -20C339 -20 382 11 439 129L416 148C366 74 334 55 305 55C278 55 236 68 203 81C169 94 141 100 122 96C205 170 348 308 411 376L475 445Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,6.149,3.132)"><path d="M389 0V32C297 38 291 46 291 118V635C234 613 175 595 109 583V556L161 554C203 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80 50 67 49 57C48 45 52 36 66 23C80 9 123 -12 169 -12C221 -11 288 15 342 59C403 109 431 165 431 225C431 308 366 395 238 395C212 395 165 379 127 364L153 550Z"></path></g></svg></span></td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Adult moths</td><td class="align_center">2</td><td class="align_center">4</td><td class="align_center">6</td><td class="align_center">8</td></tr><tr><td class="align_left">Eggs</td><td class="align_center">47</td><td class="align_center">94</td><td class="align_center">141</td><td class="align_center">185</td></tr><tr><td class="align_left">Caterpillars</td><td class="align_center">6</td><td class="align_center">11</td><td class="align_center">17</td><td class="align_center">22</td></tr><tr><td class="align_left">Maize plants</td><td class="align_center">422</td><td class="align_center">415</td><td class="align_center">408</td><td class="align_center">401</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The numbers of moths, eggs, caterpillars, and maize densities when there is no immigration of the moth.</div>

International Journal of Differential Equations

tab4

Table 4

Table 4: Modelling the Control of the Impact of Fall Armyworm (<i>Spodoptera frugiperda</i>) Infestations on Maize Production 

International Journal of Differential Equations

Modelling the Control of the Impact of Fall Armyworm (Spodoptera frugiperda) Infestations on Maize Production

Table 4